B2B: 'Business 2 Business' (Also Known As 'Back 2 Back')
BBL: Be Back Later
BBS: Be Back Soon
BCNU: Be seein' you
Blog: Weblog
BOFH: Bastard Operator From Hell
BOHICA: Bend Over, Here It Comes Again (from military slang)
Bot: Any type of automated software in chatrooms
BRB: Be Right Back
BRT: Be Right There
BSOD: Blue Screen of Death
BTDT: Been There Done That
BTW: By The Way
C
CU or CYA: See you (later)
CYA: Cover Your Ass
Cyberspace: virtual reality, the Internet, the World Wide Web, and other kinds of computer systems
D
DoS: Denial of Service (a malicious attack on a computer system)
DDOS: Distributed Denial of Service (a malicious attack on a computer system)
E
EoL: End of Line
ETA: Edited To Add
F
F2F: Face To Face
FFS: For Frack Sake
FGSFDS: Has no meaning, is meant to indicate lack of understanding or apathy
Flamer: one who writes inflammatory posts, also known as an Internet troll
FOAD: Frack Off And Die
FOAF: Friend Of A Friend
FOD: Frack Off And Die
FPS: First Person Shooter
FPS: Frames Per Second
FTL: For The Loss/Lose
FTW: For The Win
FUBAR: Fracked Up Beyond All Recognition/Repair (from military slang; pronounced "foo-bar")
FUD: "fear, uncertainty, and doubt" (the purposeful spread of misinformation)
FWIW: For What It's Worth
FYI: For Your Information
G
G2G: Good To Go
GG: Good Going/Game
GMTA: Great Minds Think Alike
Godwin's Law: dictates that the longer a thread, the more likely someone will post a comparison involving Nazis or Hitler.
GTG: Got To Go
H
HAND: Have a Nice Day
Hit: a request made to the Web server, (noun) the results of an internet search, (verb) loading a Web page. Hits are not equivalent to visitors of a webpage.
Home: the website's introduction page, starting point, and guide. The technical term is "index"
HTH: Hope This/That Helps, Happy To Help
I
IANAL: I Am Not A Lawyer
IAWTC: I Agree With This Comment
IDC: I Don't Care
IDK: I Don't Know
IIRC: If I Recall/Remember Correctly
IM: Instant Messaging
IMHO: In My Humble/Honest Opinion
IMNSHO: In My Not So Humble Opinion
IMO: In My Opinion
IOW: In Other Words
IRC: Internet Relay Chat
IRL: In Real Life
IYKWIM: If You Know What I Mean
J
Jaggy: aliased computer graphics
JK: Just kidding
j/k: Just kidding
K
KISS: Keep It Simple, Stupid
KTHX : Ok Thanks
L
Lag: Slang term for slow Internet speeds or high Internet latency; Lag is sometimes due to a server problem, but more frequently due to the connection between client and server. A slow or intermittent connection may often be referred to as laggy.
Lamer: A know-nothing
LMAO: laughing my ass off, a variation of the above, with many variations and additional letters in the acronym
LOL: laughing out loud, laugh out loud, lots of laughter
Lurker: one who frequents a message board without participating in discussions
M
Mactel: Macintosh based on Intel Processor
MOTD: Message Of The Day
MYOB : Mind Your Own Business
N
Newbie: an inexperienced user
Newb: an inexperienced user
Noob: an inexperienced user
N00b: an inexperienced user
NIFOC: Naked in Front of Computer
NM: (Sometimes written N/M) No Message or No More, used on Internet forums or e-mails to indicate that everything is already said in the subject line. NM is also Internet slang for Not Much.
N/M: No Message or No More, used on Internet forums or e-mails to indicate that everything is already said in the subject line. Also Internet slang for Not Much.
NP: No Problem
NSFW: Not Safe For Work (indicates that one should avoid accessing the labeled link from a workplace due to the presence of pornography or other unsuitable content)
NVM: Nevermind
NWS: Not Work Safe
O
O RLY: Oh really?
OIC: Oh, I See
OMG: Oh My God/Gosh
OMFG: Oh My Fracking God
OOT: Out Of Topic
Op: Operator / Moderator (also SysOp)
OP: Original Post or Original Poster"
OS: "Operating System"
OT: Off Topic
OTOH: On The Other Hand
OYATM: One Year Ago This Month
P
P2P: peer-to-peer, person to person, player to player, programmer to programmer
PEBKAC: Problem Exists Between Keyboard And Chair.
PEBCAK: Problem Exists Between Chair And Keyboard.
PIMF: Preview Is My Friend (used by someone who, having failed to preview, has just posted a comment with an embarrassing typo)
Ping: Are you there?
PITA: Pain In The Ass
PIYF: Preview Is Your Friend (used to make fun of someone who has failed to preview their post and posted a comment with an embarrassing typo)
PLMK: Please Let Me Know
PM : Personal/Private Message
PPOR: Post Proof Or Recant
PWN: A typo-deliberate version of "own or owned (past tense)," a slang term often used to express superiority over others
PWNED: A typo-deliberate version of "own or owned (past tense)," a slang term often used to express superiority over others
Q
QFE: Quoted For Emphasis
QFT: Quit Feeding Trolls/Quit Fracking Trolling/Quoted For Truth/Quit Fracking talking
QWP: Quoted With Permission
R
REHI: hello again
RL: Real Life
ROFL: Rolling On (The) Floor Laughing
ROFLMAO: Rolling On Floor Laughing My Ass Off
RSN: Real Soon Now (used sarcastically)
RTFA: Read The Fucking Article
RTFM: Read The Fracking Manual
RTFP: Read The Fucking Post
S
SCNR: Sorry, Could Not Resist
SFW: Safe For Work (material that may safely be viewed in one's office)
Smiley: emoticon
SNAFU: situation normal, all Fracked up (from military slang)
Snail Mail: normal paper mail service
Spam: junk email
Spider: the program behind a search engine
SSIA: Subject Says It All
STFU: Shut The Frack Up
T
TBH: to be honest
TH(N)X: Thanks
TIA: Thanks In Advance
TINC: There Is No Cabal (a term discouraging conspiracy theories)
TINWOP: Thread Is Nothing Without Pictures
TL;DR: Too Long; Didn't Read
TLDR: Too Long, Didn't Read
TOS: terms of service
TTBOMK: To The Best Of My Knowledge
TTFN: Ta Ta For Now
TTT: To The Top (a reply used to ressurect a thread to the top of the list)
TTYL: Talk To You Later
Tweedler: computer geek or someone who plays with themselves at the computer