ADN - Any Day Now
AFAIK - As Far As I Know
AFK - Away From Keyboard
AKA - Also Known As
ATM - According To Me
ATTN - Attention

BAK - Back At the Keyboard
BBIAB - Be Back In A Bit
BBL - Be Back Later
BBS - Be Back Soon
BFN - Bye For Now 
BIF - Basis In Fact
BION - Believe It Or Not
BL - Belly Laughing
BRB - Be Right Back
BTA - But Then Again
BTW - By The Way

CMIIW - Correct Me If I'm Wrong
CU - see you
CUA - Common User Access
CUL - see you Later
CWYL - Chat With Ya Later
CYO - See You Online
DBA - Doing Business As
DIKU? - Do I Know You?
DITYID? - Did I Tell You I'm Distressed?
DTRT - Do The Right Thing

EMFBI - Excuse Me For Butting In
EOM - End Of Message
EOS - End Of Show
EOT - End Of Thread

FTF - Face To Face
FAQ - Frequently Asked Question(s)
FISH - First In, Still Here
FOMCL - Falling Off My Chair Laughing
FUD - Fear, Uncertainty & Doubt
FWIW - For What It's Worth
FYA - For Your Amusement
FYEO - For Your Eyes Only
FYI - For Your Information

GA - Go Ahead
GAL - Get A Life
GIGO - Garbage In, Garbage Out
GIWIST - Gee, I Wish I'd Said That
GMTA - Great Minds Think Alike
GOL - Giggling Out Loud
GRD - Grinning, Running & Ducking
GTRM - Going To Read Mail

HHOK - Ha Ha, Only Kidding
HHOS - Ha Ha, Only Serious
HNG - Horny Net Geek
HTD - Have To Disagree...
HTH - Hope This Helps
HTHBE - Hope This Has Been Enlightening

IAC - In Any Case
IAG - I'm A Genius
IAE - In Any Event
IANAL - I Am Not A Lawyer
IC - I see
ICAM - I Couldn't Agree More
ID - I Disagree
IHA - I Hate Acronyms
IIRC - If I Remember Correctly
ILY or ILU - I Love You
IMAO - In My Arrogant Opinion
IMCO - In My Considered Opinion
IMHO - In My Humble Opinion
IMNSHO - In My Not So Humble Opinion
IMO - In My Opinion
IOW - In Other Words
IPN - I'm Posting Naked
IRL - In Real Life
IRT - In Real Time
ITA - I Totally Agree
ITD - I Totally Disagree
ITRW - In The Real World

JAT - Just A Thought
JAPRI - Jalur Pribadi
JFU - Just For You
JIC - Just In Case
JK - Just Kidding (or Joke)
JMHO - Just My Humble Opinion
JMO - Just My Opinion

KWIM? - Know What I Mean?

L8R - Later
LBAY - Laughing Back At You
LD - Later Dude
LDR - Long-Distance Relationship
LLTA - Lots and Lots of Thunderous Applause
LMAO - Lauging My Ass Off
LOL - Laughing Out Loud (or Lots Of  Luck)
LOLBAY - Laughing Out Loud Back At You
LTM - Laugh To Myself
LTNS - Long Time No See

M/F? - Male or Female?
MEGO - My Eyes Glazed Over
MHOTY - My Hat's Off To You
MINK - Multiple Income No Kids
MMHA2U - My Most Humble Apologies to you
MOOS or MOTOS - Member Of  The Opposite Sex
MOSS or MOTSS - Member Of  The Same Sex
MOTD - Message Of The Day
MOTO - Member Of  The Opposant
MUD - Multi-User Dungeon (or Dimension)

NBIF - No Basis In Fact
NBIR - No Basis In Reality
NW - No Way
NP - No Problem
NRN - No Reply Necessary

OIC - Oh, I see
OLL - On-Line Love
OMG - Oh My God
OOTB - Out Of The Box
OOT - Out Of  Topic
OPM - Other People's Money
OTF - On The Floor
OTOH - On The Other Hand
OTOOH - On The Other, Other Hand
OTP - On The Phone
OTTH - On The Third Hand
OTTOMH - Off The Top Of My Head

PANS - Pretty Awesome New Stuff 
PC - Politically Correct or Personal Computer
PDA - Public Display of Affection
PDQ - Pretty Darn Quick
PEBCAK - Problem Exists Between Chair And Keyboard
PGB - Pengertiannya Gitu Bang
PI or PIC - Politically Incorrect
PITA - Pain In The Ass
PMFJI - Pardon Me For Jumping In
PMJI - Pardon My Jumping In
POTS - Plain Old Telephone Service (or Pretty Old Tired Stuff)
POV - Point Of View
PPL - Peed Pants Laughing or People

RL - Real Life
ROAR - laughing as loud as a lion
ROFL - Rolling On Floor Laughing
RP - Romantic Partner
RPG - Role Playing Games
RSN - Real Soon Now 
RTM - Read The Manual or Message
RW - Real World 
RYO - Roll Your Own

SINK - Single Income No Kids
SITD - Still In The Dark
SO - Significant Other
SOL - Smiling Out Loud
SOMY? - Sick Of Me Yet?
STD - Sick To Death
STS - Sorry To Say

TAF - That's All Folks
TAFN - That's All For Now
TANSTAAFL - There Ain't No Such Thing As A Free Lunch
TCN - Take Care Now
TFH - Thread From Hell
TFI - The Fact Is 
TFM - Thanks From Me
TFMT - Thanks From Me Too
TGIF - Thank God It's Friday
TGTBT - Too Good To Be True
TFRM - Thanks For Remind Me
THX - Thanks
TIA - Thanks In Advance
TIC - Tongue In Cheek
TIG - This Is Great
TIIC - The Idiots In Charge
TLA - Three-Letter Acronym
TPTB - The Powers That Be
TTFN - Ta Ta For Now
TTYL - Talk To You Later
TQ or TX or TXS or THX - Thanks (or Thank You)
TYSM - Thank You So Much
TYVM - Thank You Very Much

UAPITA or YAPITA - You're A Pain In The Ass
USTM or YSTM - You Should Thanks Me

VWP - Very Well Put

W4W - Word for Word
WAGS - What A Great Story
WAI - What An Inspiration!
WB - Welcome Back
WDALYIC? - Who Died And Left You In Charge?
WFM - Works For Me
WIBNI - Wouldn't It Be Nice If
WP - Well Put
WT? - What/Who The?
WTH? - What The Hell?
WTG - Way To Go
WTGP? - Want To Go Private?
WTS - With That Said
WU? - What's Up?
WUF? - Where are you From?
WYSIWYG - What You See Is What You Get

XOXO - kisses and hugs
XX - kisses

YAAG - You Are A Genius
YABR - You Are Being Replaced
YGBSM - You've Gotta Be Shittin' Me
YMMV - Your Mileage May Vary
YRR - You'r Right
YVMW - You're Very Much Welcome

Sumber: milis html-jatim