ADN-Any day now
AFAIK-As far as I know
AFK-Away from keyboard
A/S/L?-Age/sex/location?
B4N-Bye for now
BAK-Back at the keyboard
BBIAB-Be back in a bit
BBL-Be back later
BEG-Big evil grin
BFD-Big f***ing deal
BFN-Bye for now
BG-Big grin
BL-Belly laughing
BRB-Be right back
BTA-But then again...
BTW-By the way
CU-See you
CUL-See you later
CYA-Cover your ass
DIKU-Do I know you?
EMFBI-Excuse me for butting in
EOM-End of message
F2F-Face to face
FAQ-Frequently-ask question(s)
FISH-First in, still here
FOAD-F*** off and die (used during flaming)
FOMCL-Falling off my chair laughing
FUD-Fear, Uncertainty, and Doubt
FWIW-For what it's worth
FYI-For your information
GA-Go ahead
GAL-Get a life
WIST-Wish I'd said that
GMTA-Great minds think alike
GOL-Giggling out loud
GTRM-Going to read mail
HAND-Have a nice day
HTH-Hope this helps
IAC-In any case
IC-I see
IIRC-If I recall/remember/recollect correctly
IM-Immediate message
IMHO -In my humble opinion
IMing-Chatting with someone online while doing other things
IMO-In my opinion
IOW-In other words
JIC-Just in case
JK-Just kidding
KWIM?-Know what I mean?
L8R-Later
LD-Later, dude
LDR-Long-distance relationship
LOL-Laughing out loud
LTNS-Long time no see
MorF-Male or female
MOSS-Member of the same sex
NP or N/P-No problem
NRN-No response necessary
OIC-Oh, I see
OTOH-On the other hand
OTTOMH-Off the top of my head
PITA-Pain in the ass
POS-Piece of s**t
POTS-Plain old telephone service
RL-Real life (that is, when not chatting)
ROTFL- Rolling on the floor laughing
RPG-Role-playing games
RSN-Real soon now
RTFM-Read the f***ing manual
SF-Surfer-friendly (low-graphics Web site)
SO-Significant other
SOMY-Sick of me yet?
STW-Search the Web
TAFN-That's all for now
TFH-Thread from hell
THX-Thanks
TIA-Thanks in advance
TMI-Too much information
TTFN-Ta-Ta for now
TTT-Thought that, too
TTYL-Talk to you later
TU-Thank you
UW-You're welcome
VBG-Very big grin
WDALYIC-Who died and left you in charge?
WFM-Works for me
WT?-What/who the ?
WTG-Way to go!
WTGP?-Want to go private?
WU?-What's up?
WUF?-Where are you from?