GILNET COMPUTER CENTRE

A

ACK — "acknowledged"; used frequently in discussion boards, tech-speak
AFAIC — "as far as I'm concerned", or "as far as I care", or "as far as I can..."
AFAICS — "as far as I can see"
AFAICT — "as far as I can tell"
AFAIK — "as far as I know"
AFAIR — "as far as I recall", or "as far as I remember"
AFC, AFK — "away from computer/keyboard"
AICMFP — "And I claim my five pounds"
AIM — "AOL Instant Messenger" Usage: Talk to me on AIM.
AIUI — "As I understand it"
AKA — "Also known as", predates the Internet.
ANON — "Anonymous"
AO — Anarchy Online
AOHell — Derogative term for America Online (AOL).
ASAP — "as soon as possible", predates the Internet.
ASL — "Age, sex, location"; used to request general information about a fellow user. Also used as an introductory phrase, usually when expecting that information up-front. (Some will consider this request rude)
ATM — "At the moment"
ATOP — "At time of posting..."
ATTN — "Attention"
AUP — "Acceptable Use Policy"
AYBABTU — "All your base are belong to us"
Azn — adjective short of "Asian"

B

B& — "Banned"
B2B — "business to business"; ecommerce used by businesses to interact with other businesses. It can also mean "bad to the bone".
B4 — "Before"
B4N — "Bye for now"
B7 — "Banned" - A derivation of B&, minus the shift key.
Ban; to deny a particular user access to an internet resource, typically due to TOS violations.
BB — "Bye bye"
BBIAB — "Be back in a bit"
BBIAW — "Be back in a while"
BBL — "Be back later"
BBQ — "Be back quick".
BBS — "Be back soon", or "bulletin board system/service"
BBT — "Bubble Tea"
BBW — "be back whenever"
BC, B/C — "Because"
Bewt — "Boot".
BIO — "Bio Break, Biological Break, Bathroom Break" (Usually used following the BRB abbreviation)
B00t — Opposite of "w00t". Can also describe kicking people from game or chat servers
BF — "Boyfriend"
BFF — "Best friend forever"
BFN — "Bye for now"
BGS — An institution responsible for the creation of various colloquialisms, such as dede, dedish and ngaaah
BL — "Bad luck"
Blog — Short for "weblog" from "Web log". Often used as a verb, as in "I was blogging today".
blogger — "Web logger": someone who writes or posts articles or messages on a blog.
BNOL — "Be nice or leave"
B0rk, b0rked, to b0rk: broken, to break. A b0rked system refuses to work.
BRB — "Be right back"
BS — "Bullshit". battle.net specific: backstab. EVE Online specific: Battleship"
BSOD — "Blue screen of death"
BTDT — "Been there, done that"
BTTT — "back to the top"
btw — "by the way"
BTW (2) — "Better Than Working", refers to an activity that can be done at work that is better than working. Like reading a blog or a humorous website, etc...
bump — to comment for the sole purpose of bringing a thread to the top of the page. Used in forums.
BURMA — "Be Undressed Ready My Angel" (dates back to World War II; pre-Internet)
BW — "bandwidth" battle.net specific: broodwar.
B/T, BT — "Between" or the BitTorrent peer-to-peer file-sharing protocol.
BYOC — "Bring your own computer". Often used in connection with computer gaming events. May also stand for Build Your Own Computer. For example, Quakecon is a BYOC Lan Party in North America.

C

Cec — "sex", used to get around Internet chat filters.
Chown (Ch0wn3d) — a deliberate mis-spelling of "own" (see "own" entry below).
CID — "Consider it done"
CiS — "Chuckle(ing) in Silence", "chuckling very quietly"; as an alternative to "LOL"
cig — Short for cigarette or cigar
cluebie — A clueless newbie (but sometimes apparently confusingly used to mean "a newbie with a clue, but not close to a guru")
CMIIW — "Correct me if I'm wrong"
CoD — "Call of Duty"; World War II first person shooter PC Game*
coo — "Cool"
CPL — "Actually standing for CyberAthlete Professional League, the biggest LAN event, but has become an alternative to call some "leet" (good) for example, "OMG you're CPL"
CS — "Counter-Strike"; Widely played First Person Shooter game; Computer Science.
CSL — "Can't stop laughing"
CT — (Counter-Strike) Counter Terrorist
CTD — "Crash To Desktop" - Used to indicate that the speaker's game has crashed.
CTF — "Capture the flag". A gaming mode where two teams have a flag each and the objective capturing the other team's flag. Or Capture that fucker!!!!
ctm. — "Chuckle to myself"
CU — "see you"; used as a goodbye, commonly together with "l8r" (later), as in "cul8r", often abbreviated to merely "cul". See also "cya".
CUWUL — "Catch up with you later"
CWOT — "Complete waste of time"
CYA — "See you"; used as a goodbye (see "cu").
cyberbug — someone who spends too much time on the Internet
CVQ — "chuckling very quietly"
C&C, CnC — "Command & Conquer"; A popular series of Strategy games, originally by Westwood Studios
C&V — "Chapter & verse"; used in newsgroups.
C|N>K — "coffee through nose into keyboard"; a Unix-ism meaning, involving the Unix command line pipe (|) and redirect (>) characters.

D

D2 — "Diablo_II"
DB4L — "Drinking buddy for life"
DC'd, D/C — "Disconnected"
dernoe — "(I) don't know"
DGT — "Don't go there"
DH — "Dear husband". Used by housewives posting on Internet forums.
DIAF — "Die in a Fire"
DIY — "Do it yourself"
DKDC — "Don't know, don't care", usually used when a person is apathetic about something.
DL, D/L — "Download"; receiving data from a remote host. Usually functions as a noun or verb. Can sometimes mean "down-low", as taken from real-life usage.
DLF — "Dropping like flies"; said when many participants have left a chat room suddenly
DM — "Deathmatch". A gaming mode with the goal of fragging as many other players as possible during a given time.
DMY — "Don't mess yourself"; from an episode of The Simpsons.
DnD — "Do not Disturb" or "Dungeons_&_Dragons"
DOTC — Dancing on the ceiling.
DoS — "Denial-of-Service"; a malicious attack on a computer system.
DT — "Double Team"; used in GunBound, a game developed by Softnyx.
dun — "Don't"; commonly used by Singaporeans.
dunno — "(I) don't know"
DYK — "Did you know(?)"

E

E — Enlightenment
EBBOM — "Engage brain before opening mouth"
EG — "Evil grin", normally written *EG* or <EG> to separate it from the surrounding text.
ehlp — Deliberate misspelling of "help" (making fun of newbies yelling for help in a MMORPG)
EIL — "Explode into laughter"
El-OH-EL; Another way to write down "lol" which stands for "laughing out loud" or "laugh out loud". Used humorously to imply that people use "lol" too much
EOF — "end of file"—used to imply the end of something
EOM — "End of message"
EQ — "Everquest", a popular MMORPG
EQ2 — "Everquest2", a popular MMORPG
e-Slang — Term used to include all abbreviations and coined terms used in e-mail, instant messaging, chatrooms, and online gaming (such as MUDS, MUCKS, etc.) (Stacy Crosby, 2004)
EULA — End-User License Agreement (a popular topic on many MMORPGs)
ETLA — "Extended three letter acronym", see TLA.
EZ; Easy. (Not confined to the Internet)

F

FAQ — Frequently Asked Question, or a list of frequently-asked questions (with answers). Seldom appears written in small letters.
FE — "Fatal error"
FF — Final Fantasy; "Friendly Fire" (especially in First Person Shooters).
FFA — Free For All (especially in First Person Shooters)
FFlO — "Far Flaming Out", old hippie term
FLOABT — "for lack of a better term"
FOAF — "Friend of a friend"; the dubious attribution given to urban legends
FOIG — "Find out in game"
FOOCL — "Falls out of chair laughing".
fooding — the act of acquiring food; often used in conjunction with AFK (EG: "AFK fooding")
FP — "First post"; originally used on Slashdot
frag — To kill or tear to pieces. Its origin comes the Vietnam War or earlier, from "fragmentation grenade". It had a particular application to "fragging" 2nd lieutenants or hated officers, especially in the jungle.
FSOD — "Frozen Screen of Death"; a Phantasy Star Online error.
FTF or F2F — "Face to face"; referring to a meeting in the real world, not online. In role-playing terms, it is the offline predecessor to MMORPGs and MUDs.
FTLOG — "For the love of God!"
FTP — "File transfer protocol"
FTTB — "For the time being"
FTW — "For the win"; Indicates the end of the game, it is often used to reference the object responsible for victory. Also sometimes shown as 4tw.
FUD — "Fear, uncertainty and doubt"; purposeful spread of misinformation.
FWIW — "For what it's worth"
FXP — "File exchange protocol"
FYI — "For your information" (predates the Internet)

G

G — "Grin", normally written *G* or <G> to separate it from the surrounding text
G2G, GTG — "Got to go", also "good to go"; popularized in MMORPGs and MUDs.
G4Y, GFY — "Good for you".
GAL — "Get a life"
gamez — Illegally obtained games (see warez).
<g,d&r> — "Grins, ducks and runs"; used after a particularly bad joke, seemingly to try to avoid comments about it.
GG — "Good going" or "good game"; used sincerely in competitive and cooperative online games, or used sarcastically when someone has done something foolish.
GH — "Good half", used in online round-based games such as Counter-Strike.
GIS — Google Image Search; searching for images through the Google search engine
GJ — "Good job", often sarcastic
GL — "Good luck"
Gl hf — "Good luck, have Fun." Usually used in online gaming.
GMTA — "Great minds think alike"
gnite, GN8 — "Good night"
"gno" — Gonna (Going to do)
GR8 — "Great", sometimes spelled gre8t even though it doesn't make the word any shorter.
Grats — Abbreviation of "congratulations". Used in MMORPGs when a played reaches a new rank or level
GTG — "Got to go"
GTP — "Got to Pee"
guru — An expert in some technical topic, such as C programming or Unix system administration
GW — "Good work", often used sarcastically.

H

HAI — A purposeful misspelling of "hi"; Japanese for "yes"
HAND — "Have a nice day"
Hawt — variation of "hot", used to suggest that someone seems attractive
HAX, H4X; "Hacks, term most commonly used in multiplayer games by new players (see n00bs) to accuse someone of hacking, more commonly than not because of their own lack of skill. (see pwned)"
HAXOR, H4X0R; "Hacker"
HB — "Hurry back"
HBD — "Happy birthday"
HF — "Have fun"
hijack — To start an off-topic discussion; "hijack a thread" on a message board.
hmwk — "Homework"
H/O — "Hold on"
HSS — "Horse shit and splinters"
HTH — "Hope this (or that) helps"
HWG Here We Go
HWGA Here we go again
HWP — "Hug, Wave, Poof"; A way of saying "goodbye"

I

IANAL — "I am not a lawyer"; usually used before a non-lawyer gives legal advice, as a (sometimes humorous) disclaimer.
IANARS — "I am not a rocket scientist"
IC — "I see", also "in character" in MMORPG or MUD settings.
ICYDK / ICYDN / ICUDK — "In case you didn't know"
IDK — "I don't know"
ID10T — "Idiot"; generally pronounced eye-dee-ten-tee, its meaning is not obvious until viewed in written form. Example: "We've got an ID10T error!"
idjit, ijit — "Idiot"
IIRC — "If I recall correctly", or "if I remember correctly"
IIUC — "If I understand correctly"
IGAHP — "I've got a huge penis"
IKON — "ikonBoard, also spelled as IKN"
I like pie — Used to express apathy or confusion towards the present subject matter, invented by YINever of the GameFAQs message boards
ILOTIBINLIRL — "I'm laughing on the Internet, but I'm not laughing in real life"
IM — "Instant message", can be used as a noun ("Send an IM") or a verb ("I'll IM him"). Past tense is "IM'd" or "IMed".
IMO — "In my opinion"
IMAO — "In my arrogant opinion"
IMHO — "In my humble opinion", or "in my honest opinion"
IMHPO — "In my humble public opinion", used by public accounts (accounts owned by more than one persons).
IMHE — "In my humble experience"
IMNSHO — "In my not so humble opinion", as opposed to IMHO (In my humble opinion)
INMP — "It's not my problem"
INTPFPOTM — "I nominate this post for post of the month"; incredibly obscure.
IOH — "I'm outta here"
IOW — "In other words"
IPB — Invision Power Board
IRC — Internet Relay Chat
IRL — "In real life"; often used in online games to refer to life outside of the game, see IRT — "In reply to"
ISTR — "I seem to remember/recall"
ITYM — "I Think You Mean"; usually prefacing a humorous "correction"
IWIAMUAFTP — "I wonder if anyone makes up acronyms for this page"
IYDMMA — "If you don't mind me asking"
IYKWIM — "If you know what I mean"

J

JAK — "Jazak Allah Khair", Arabic expression for thank you
JC, J/C — "Just curious"
JJ — "Just joking"
JK, J/K — "Just kidding"
JOOC — "Just out of curiosity"
j00, j00s, j00r — Leet speak for "you" or "your"
JW, J/W — "Just wondering"

K

K — "OK/Okay"
keekles — Usually used while deliberately acting like a newbie.
kewl, kool — Alternate forms of "cool".
KISS — "Keep it simple, stupid" (predates the Internet)
KK — "Ok Kool"
KTHXBYE — "Okay, thanks, goodbye" — usually used to end a conversation abruptly and rudely
KO — A common misspelling of ok.
KOL — "Kiss on lips"
KOS — "Kill on Sight"; used to designate enemies in online games whom -- based on their prior actions -- one should kill
KREE! — "Attention!"
KS — "Kill steal"; used in online games with an experience (EXP) system, when one player defeats an enemy already weakened by another player.

L

L8, L8R — "Late", "later"; as in "see you later", often used together with CU, as in CUL8R.
LAFFO — Signifying laughter
Llama — Lame player
LATN — "Laugh at the newbs"
LBR — "Little boy's room"
LD — "Link dead"; used in online games when a disconnected user's persona or character remains in the game.
LEO - "Law enforcement officer"
LEET, L33T, 1337, 31337 — "Elite", used ironically; also another kind of slang where numbers and symbols replace similar-looking characters.
Lewt — "Loot" Often used as "Lewt fast 'n' Bewt ass".
LION — "Like it or not..."
LIUY — "Look it up yourself"
LKY — "Lee Kuan Yew, Minister Mentor of Singapore"
LMAO — "Laughing my ass off"
LMAOnade — A homophonous extension of LMAO that humorously refers to "lemonade"
Chairman LMAO — similar to above, referring to the first Communist ruler of China.
LOL — "Laughing out loud", or "lots of laughs"; as a reply to something amusing. Also "lots of love" (not as common). Alternatively allegedly derived from the Dutch word lol ("fun")
lolcity — Something so funny the entire city laughs out loud.
lollercaust — An extreme event of hilarity.
lollerskates — Pun on the word "rollerskates"; similar usage to LOL.
Loxxen — An altered form of LOL, with virtually the same meaning, but slightly enhanced.
LSFW — "Less Suitable for Work"
LTID - Laugh 'Till I Die
LTNS — "Long time no see"
lurker — One who reads an email list or a message board but does not participate in the discussion.
luser — Punny cross between loser and user, can mean either of the two. Usually denotes users of Microsoft Windows.
LYL — "Love ya lots"
LYLAS/LYLAB — Love you like a Sister/ Love ya like a Brother
LYK, LYKE — "Like"

M

M473z — "Mates" pronounced may-tez, a term referring to a good friend, closer than a m8
M8 — "Mate"; as in "buddy" or "pal"
MFC — "Merge from current"
Micro$oft, M$ — Satirical alternative spellings of "Microsoft", used to poke fun at that company's alleged commercial monopolizing
MML — "Make mine Linux", comeback to 'élitist' Windows users
MMORPG — "Massively multiplayer online role playing game", a game played online with thousands of other people from across the world
Mod — "Moderator" (usually referring to a forum) or "modification"
MOTD — "Message of the day"
MYOB — "Mind your own business"

N

N1 — "Nice one"
N/A — "Not applicable" or "not available"
NBD — "No big deal"
NFBSK — "Not for British school kids", originally from message boards at snopes.com, used sometimes in place of NSFW.
newb — Short for "newbie"; meaning someone who is new, usually at a game.
NFAHRU? — "Not from around here R U?"
NG — "Newsgroup"
NG — "No good"
Ngaaaah — A cry of frustration or triumph, which one can speak out loud by using the throat and nasal passage to produce a loud and at times annoying sound. Used comonly in some school environments to annoy a teacher as a class unit. This cry can also gain the attention of ones peers
Nh — "Nice hand"; used in online card games.
NI — "No idea"
NM or N/M — "Never mind" or "not/nothing much".
Also "no message", used on message boards to indicate that all the text is in the post's title, and that it need not be opened itself.
NM U: "Nothing much, you?" (generally said after sup)
NMFYS — Unknown acronym from comic Badly Drawn Kitties, a webcomic. User-created "solutions" include "Not Mentioned For Your Sanity" and "Not My First Yellow Submarine," see the BDK Comic. (http://www.badlydrawnkitties.com/d/20031111.html)
NMNHNLM — Acronym for "no money no honey nobody loves me" originating from HWZ forums
NN — "Night night" like "good night" Also: "Nerf Noodle" (someone who doesn't belong on a computer), or "Nazi Newbie" (a know-it-all newbie who corrects everyone)
noob — Shorthand/leet spelling of "newbie". Also spelled "n00b", with two zeroes rather than two Os (see leet) or "newb". In some Internet circles, the term "noob" or "n00b" has a negative connotation, generally not associated with "newb" or "newbie", where being a n00b carries a connotation of ignorance and laziness. N00bs may lack the energy or the gumption to RTFM or otherwise attempt to find out about a subject themselves — even given the ready availability of the information — and instead choose to bother others. A newbie, on the other hand, simply comes fresh to a subject, with no particularly negative connotations. Internet Games such as "Call of Duty", "Counter-Strike" and "Medal of Honor" commonly use the term "n00b".
n0083127z — "Nooberts" a mutation of n00b, often used to describe someone who not only demonstrates stupidity, but is also has less esteem or less power than the speaker
Norp — from pr0n. Used to discreetly speak of pornography without alerting the attention of others (less obvious in meaning than pr0n)
NOYB — "None of your business"
NP — "No problem"
NPNT — "No picture, no talk" Origin from Hardwarezone — EDMW
NPA — "Not paying attention"
NR — "No reserve"
NR4U — "Not right for you"
NS — "Nice shot"; used sincerely in competitive and cooperative online games such as GunBound, or Medal of Honor. Also, "No Shit"; sometimes used as "NSS" for "No Shit, Sherlock"
NSFW — "Not safe for work"; indicates that one should avoid using a link from a workplace due to the presence of pornography or of other unsuitable content. Used at Fark and on some message boards. See also SFW.
NT — "No text"; used on Internet forums or Usenet to indicate that a post has no content. Also, "nice try"; used by gamers.
NTH — "Not totally here"
NVM — "Never mind"
NWS — "Not work safe"; see NSFW.
Nyo — A usually meaningless word/particle attached to the end of sentences, similiar to the word "hiyo" used by Johnny Carson

O

O — "Oh"
OAR — On a roll — referring to someone's luck during Internet games. Winning several games in a row (3 or more) would constitute an OAR.
OBTW — "Oh, by the way"
OS — "Oh, shit!"
oh noes!!!!111 — An exaggerated expression of despair, often used for humorous effect.
OIC — "Oh, I see"
OMG — Exclamation, "Oh my God/goodness!"
OMW — "On my way"
OOC — "Out-of-character"; usually in MMORPG or MUD settings when a player isn't acting out his/her part. It was also used in fanfiction to indicate likewise. Also, "out of curiosity".
OOO — "Out of the office"; Used similarly to MIA. "Ken is OOO today." Also, OpenOffice.org.
OP — Original poster
Op — Operator, a moderator or moderators of a chat room
OSIB — "Open skull insert brain"
OT — "Off-topic"
OTP — "One true pairing", meaning two characters believed to be perfect together, usually not canon. Used in fanfiction.
OTOH — "On the other hand"
OTW — "On the way"
OUACOWA — "Open Up A Can Of Whoop-Ass", meaning an amaizing thing. Coined from the roleplay game Unknown Armies.
OXO — Norwegian/Danish shortening of the word "også", which translates to "too" or "also"
own, owned, OWN3D, ownt — (see also pwn) To defeat someone (used commonly when playing Counter-Strike) or to humiliate someone tactically in a debate; to exhibit extreme coolness (for example: "BMWs totally own").
ownzer — One who "owns" (see own)
OYATM — "One Year Ago This Month" used in Usenet binary groups when posting content that has just recently become old enough to post.

P

P911 Parents are here dont type sumthin stupid!
P2P — "Peer-to(2)-Peer". Also "pay-to-play" for games with subscription fees like Everquest, RuneScape, or Dark Age of Camelot.
PAW — "Parents are watching" (Also see "POS")
PCBD — "Page cannot be displayed"; Internet Explorer error when attempting to visit an invalid link or URL, or when a Web server times out.
PEBKAC — "Problem exists between keyboard and chair", referring to in human error. See PICNIC and ID10T.
PITA — "Pain in the ass"
PICNIC — "Problem in chair, not in computer", referring to in human error. See PEBKAC and ID10T.
Piconjo — A shared account on www.newgrounds.com. Large numbers of people, under the guise of Piconjo accounts, submit explicit animations of NG animators, in an attempt to "pwn" them. Piconjo speaks in fluent 1337 and claims to have "pen0r power".
Pic(s), pix — Used in reference to a picture. Usually posted when someone wants another person to post a picture. This could be used in many different situations, but is most prominent when someone is talking about a woman or girl.
PLS, PLZ — "Please" — predates Internet
PM — "Private message"
PMG — Can sometimes be seen instead of "omg", which means "oh my God"
PMIBD — "Pardon me I'm brain dead!"
PO, PO'd — "Piss off", or "pissed off"
POTAS; Person Of The Appropriate Sex, that is, a person of the sex that one finds attractive. A more politically correct term than "person of the opposite sex"
POS — "Parents over shoulder"; a warning, by kids, that parents may be watching. Also, "piece of shit". (Also see "PAW")
POV — "Point of view"
ppl, ppls — "People".
pro, pr0 — "Professional"; meaning someone is really good, usually at a game.
pron, pr0n — "Porn" (short for pornography); intentional misspelling used to avoid automated filters on certain words.
protal, pr0tal — a misspelling of "portal", an automated system used on websites such as Newgrounds to manage submitted content.
prv — "Private" similar to PM; usually used for IRC private messaging
PTBB; "Pass the barf bag," coined in the Childfree.net discussion list in the '90s.
PvE — Player versus environment
PvP — Player versus player
pwn, pwned (also p0wn or pwnt) — An accidental or intentional mistyping of "own". Sometimes used to speak of illegal activities. See "own" above.
P07; Another way to type "pot" as in "weed" or "grass". other ways to say this include: w33d, po7 q07 qot and \/\/33d. More abbreviations exist: see leetspeak

Q

ql, qool, qoolz — "Cool" (in the American sense)
qwn, qwnt, qwned — Deliberate typo of "pwn" (which see), which is a deliberate typo of "own"
QQ — "Crying eyes" (of perhaps Hong Kong Origin) meaning "oh poor baby" (false pity)

R

R — "Are"
r0x0rz (also rox0rs and other forms) — Leet speak for "rocks".
R8 — "Right", "rate"
RCT — RollerCoaster Tycoon
RD — Red Dwarf
RE — rematch; often used in online games
re/rehi — "Hello again", used on IRC, especially popular with Europeans. Mentioned in the Jargon File.
refl — Deliberate mistype of "ROFL"
rents - short for "parents"
rgr — "Roger" aka "affirmative" or "10-4", radio talk; "Roger that", meaning "message acknowledged".
rifk — Deliberate mistype of "ROFL"
RIFY — Read if You Like; often used such that 'if you like __ you will probably like this'
RL — "Real life"; often used in online games to refer to life outside of the game (which some would see as fictional!), see IRL.
ROFL, ROTFL, ROFLMAO — "Rolling on the floor laughing (my ass off)"; as a reply to something extremely amusing.
ROFLMAOPIMP; "Rolling on the floor laughing my ass off peeing in my pants"
ROFLCOPTER — The superlative of ROFL
roffle — Alternate version of "ROFL", based on the latter's supposed verbalisation.
roffle out loud — A form of "ROFL" or "LOL", intended to mock those who use many acronyms in speech.
roj — "Roger" aka "affirmative"
ROR — "Raughing out roud", an Engrish variant of LOL.
RSN — "Real soon now", sense of sarcasm.
ROTFLBTC — "Rolling on the floor laughing, biting the carpet"
ROTFLMHO — "Rolling on the floor laughing my head off"; alternative to ROTFLMAO. Some people may leave out the "T" so it will be ROFLMHO
ROTFLMAOSTC — "Rolling on the floor laughing my ass off scaring the cats"; another alternative to ROTFLMAO
ROFLKMD — "Rolling On the Floor Laughing Kazaa Media Desktop" or "Rolling on the floor laughing kicking my dog"; another alternative to ROFL
RTL — "Report the loss"; usually used in online gaming; used sarcastically when one loses or gets fragged
RU — "Are you"
rut — "Are you there?"

S

S — "Smile", usually written *S* or <S> to separate it from the surrounding text. See "G".
S2R — "Send-to-receive"; indicates that one expects to receive a file (usually an image) before he or she sends his or hers.
sif — "As if"
sifn't — "As if not", used in reply to "sif".
SCNR — "Sorry, could not resist"
SH — "Shit happens"
SLAGIATT — "Seemed like a good idea at the time" Helpful for comments when refactoring embarrassing software design decisions.
SO — "Significant other"; a termed encapsulating a girlfriend, boyfriend, or spouse.
SOB — Son of a bitch
Soz — "Sorry", apparently only used in the UK.
SFW — "Safe for work"; material (pictures, webpages) that is safe for the office. Used at Fark. See also NSFW. Alternate meaning (which may not be appropriate in the office): "So fucking what?"
SOW — Abbreviation of Spirit of the Wolf, a commonly asked-for spell in EverQuest, which makes a player run faster.
SMF — "Simple Machines Forums"
sroucks — Means even when something rocks, it sucks (or something in between), or vice versa. Often used in a sarcastic way, as to let others remain in doubt if it's praising or just the opposite.
sry — "Sorry"
srsly — "Seriously", usually used as an interjection; to signal a sarcastic response to an inane remark.
SSDD — "Same shit, different day."
SSIA — "Subject says it all"; used in newsgroup postings and the like.
SWAK — "Sealed with a kiss"
SWALK — "Sealed with a loving kiss" (pre internet)

T

T — (Counter-Stike) Terrorist
TA — "Thanks again"; also English and Australian slang for thanks, pronounced taa, predating the Internet.
TBH — "To be honest"; also used within organizational charts to mean "To be hired", equivalent to TBD (to be determined) or to TBA (to be announced)
thanx, thx, thz — "Thanks"; this can form combinations such as "kthx" (OK, thanks), "plzkthx" (Please, OK, thanks), and "kthxbye" (OK, thanks, goodbye).
teh — A usually deliberate typo of "the" — its popularity stemmed from the often-misspelled original word due to its natural frequency in English sentences. When deliberate, it sometimes serves to emphasise the following adjective, for example, "You are teh fat". It can also function to dismiss a subject, as in: "Teh, I don't care".
TFA — "The fucking article"; a shorter form of "RTFA", mostly used on Slashdot
T,FTFY — "There, fixed that for you", used when displaying an edited version of another's post, to correct an error or make a humorous word—or phrase—substitution
TIA — "Thanks in advance"
TK — Team kill (or killing, killer, depending on context)
TLA — "Three letter acronym". TLA is an example of a TLA.
TL;DR — "Too long, didn't read"
TMAI — "Tell me about it"
TMR@IA — "The monkeys are at it again"; usually used to blame the staff of online gaming communities for any screw ups in-game.
TMI — "Too much information"
TMTOWTDI — "There's more than one way to do it"; usually used as one of the mottos of the Perl programming language.
ToS — "Terms of service"
TP — "Town Portal", in Diablo and Diablo_II, a magical scroll for getting back into town; safety. Pronounced "teepee", and may occur as a verb ("Hey, TP me!")
TPTB — "The powers that be"
troll — A person who deliberately stirs up trouble.
tr00 — "True" (used in the black metal community to refer to a supposed "true" hardcore, underground fan of the genre)
TTBOMK — "To the best of my knowledge"
TTFN — "Ta ta for now" (bye, originated with Winnie The Pooh)
TTIUWIOP — "This thread is useless without pics"
TTT — Third Tier Toilet
TTYL — Talk to you later
TTYS — Talk to you soon"
TY — "Thank you"

U

u — "You"
UA — User agreement
UFIA — "Unsolicited finger in the anus"
ul — Unlucky (gaming term)
UL, U/L — "Upload"; sending data to a remote host.
ur — "You're" or "your"
URT — "Urban Terror"; A mod for Quake III
URYYFM — "You are too wise (two Ys) for me"
UT — "Unreal Tournament"; usually referring to the GOTY (Game of the Year) edition. Also used: UT2003 for "Unreal Tournament 2003", and UT2004 for "Unreal Tournament 2004".
Über - German for "super" or "hyper"; often used in video games to describe someone's talent at the game. As in "I'm an Über player". Also seen written as "Uber", "Üb3r" and "Ül33R"
Übern00b — (from German 'über', super-/hyper- and a corruption of newb) "Fat newbie"

V

v — "We"
VFM — "value for money"
VoIP — "Voice over Internet protocol", or phone conversations over broadband connections.
VWEG — "Very wicked evil grin". See "G"

W

w — Japanese version of LOL (laugh out loud). Warai(笑い) in Japanese means "laughter".
W/ — "With", predates Internet
w00t, woot — Leet-speak exclamation of excitement or happiness or applauditory whistle; Used after gaining root control of a computer, can stand for "woohoo" or for "We owned the other team"
w012d — "Word" (a generally positive interjection)
W8 — "Wait"
WAI — "What an idiot"; also, Japanese for "yay" as influenced by the anime culture
WAD — "Without a doubt"
WADR — With all due respect.
waffles — Pun on "ROTFLMAO"; used similarly. In full: "Roffle my waffles"
warez — Illegally obtained software.
wat — "What"
WB, wibs, wibbles, wibbers — "Welcome back"
WBAGNFARB — "Would be a good name for a rock band. Inspired by columnist Dave Barry and used broadly by his fans.
WCG — "World_Cyber_Games" an international cyber game festival runs by International Cyber Marketing.
WC3 — "Warcraft III"
WD — "Well done"
WDUWTA — "What do you want to talk about?"
w/e — "Whatever"
WG, WEG — "Wicked (evil) grin"
W/O — "Without", predates Internet
WoW — "World of Warcraft"
WOMBAT — "Waste of money, brains, and time"
wot, wut — "What", predates Internet
WRT — With respect to, with regard to
WRU or wru — A very simplified "Where are you". Example: Wru from?
Wruu2 — "What are you up to?"
WTFPWND — See pwn
WTG — "Way to go!", often sarcastic.
WTH — "What the heck?" or "what the hell?"
WYSIAYG — "What you see is all you get". Like WYSIWYG, with a derogatory suggestion as to the incompleteness of the software.
WYSITWIRL — (pron. "wizzy twirl") "What you see is totally worthless in real life." A derogatory term indicating that a claim of WYSIWYG has little validity.
WYSIWYG — (pron. "wizzywig") "What you see is what you get". In the print industry, it means that printed output will look identical to its screen representation. More recently used to refer to the style of making webpages that arose through the use of HTML-generators such as MS FrontPage, Dreamweaver, etc. and implies that the output may appear crude and does not transfer well across all settings.
WYGIWYGAINUC-"what you get is what you're given and it's no use complaining"

X

X>* — Definition of something [X] as better than everything [*]. Often [X] stands for a user's handle and [*] for an organization or for another user. Sometimes crackers will use this as a boast and an insult when defacing a Web site, implying their superiority over the victim-organization and/or the Web site's administrators.
XD — An emoticon resembling someone laughing when rotated clockwise 90°. Also xD
ecks-dee — Another form of "XD" that emphasizes its pronunciation.
-x0r — A suffix used by H4X0Rs to emphasize a point.
xOMG — OMG^3

Y

YGM — "You've got mail"
YGP — AOLese "You've got pictures"
YGPM — "You've got a private message"
YHBT — "You have been trolled"
YHL — "You have lost"
YHPM — "You have a private message"
YIM — Yahoo! Messenger
YM — "Your mom!"
YMMV — "Your mileage may vary" or "you make me vomit"
YMSTICPC — "You Might Say That, I Couldn't Possibly Comment"
YNK — "You never know"
YOMANK — "You owe me a new keyboard" (after a joke causes explosive expulsion of beverage from one's mouth)
yr — "Your" or "you're"
YS — "You suck"
YSSIA — "Your spelling says it all!"
yuo — A usually deliberate typo of "you" — Possible origins include fast and/or careless typers hitting the keys out of sequence. Like "teh", it sometimes adds emphasis to a phrase (often pairing with "teh" in doing so), for example, "Yuo are teh suck"
YW — "you're welcome"

Z

z00t — Also "zoot"—bastardization of "w00t"
0day — Software or media that is illegally obtained before or on the day of the official release.
zig — "Cigarette".
ZOMG — Bastardization of "OMG", meaning "oh my God". Derived from the accidental use of the "z" key when the typist intended to use the Shift function. Pronounced "zoe my God", "zee oh em gee", or "zed oh em gee" (the last two varying on the regional pronunciation of the name of the letter Z).