I have noticed a lot of people asking what certain abbreviations mean. I found a good list with most of them. HTH!
AAMOF - As A Matter Of Fact
AF - Aunt Flow, reference to menstrual cycle
AFAIK - As Far As I Know
AFAIU - As Far As I Understand
AISI - As I See It
AKA - Also Known As
ANY1 - Anyone
ASAP - As Soon As Possible
ASL - Age/ Sex/ Location?
ATB - All The Best
ATTN - Attention
B4 - Before
B4N - Bye For Now
BBL - Be Back Later
BBS - Be Back Soon
BC or B/C - Birth Control or Because
BF - Breastfeeding, Breastfed or Boyfriend
BIL - Brother In Law
BION - Believe It Or Not
BOL - Best Of Luck
BRB - Be Right Back
BTW - By The Way
BWL - Bursting With Laughter
C&P - Copy & Paste
CAW - Children Are Watching
CIO - Crying It Out
CU - See you
DD - Dear/Darling Daughter
DH - Dear/Darling/D*mn Husband
DIM - Do It Myself
DIY - Do It Yourself
DK - Don't Know
DLG - Devilish Little Grin
DOB - Date Of Birth
DS - Dear/Darling Son
DW - Dear/Darling/D*mn Wife
EOD - End Of Discussion
F2F - Face To Face
FAQ - Frequently Asked Question(s)
FIL - Father In Law
FWIW - For What It's Worth
FYI - For Your Information
GA - Go Ahead
GBH&K - Great Big Hugs & Kisses
GF - Girlfriend
GG - Gotta Go
GL - Good Luck
GLG - Goofy Little Grin
GMTA - Great Minds Think Alike
GR8 - Great
GTG - Got To Go
HAK - Hugs And Kisses
HAND - Have A Nice Day
H&K - Hugs & Kisses
HP - Home Page
HTH - Hope This Helps
IB - I'm Back
ICQ - I Seek You [an Internet messaging system]
ICU - I see you
IME - In My Experience
IMHO - In My Humble Opinion
IMO - In My Opinion
IOU - I Owe You
ISO - In Search Of
ISP - Internet Service Provider
ITA - I Totally Agree
JK - Just Kidding or Junior Kindergarten
J/K - Just Kidding
JMHO - Just My Humble Opinion
JMO - Just My Opinion
JSYK - Just So You Know
KISS - Keep It Simple Stupid
KWIM - Know What I Mean
L8R - Later
LALL - Live And Let Live
LMK - Let Me Know
LOAO - Laughing Our A*ses Off
LOL - Laughing Out Loud
LTM - Laughing To Myself
LTNS - Long Time No See
LY - Love ya
M8 - Mate
ME2 - Me Too
MIL - Mother In Law
MOF - Matter Of Fact
MYOB - Mind Your Own Business
NBD - No Big Deal
NBTD - Nothing Better To Do
NE1 - Anyone
NIMBY - Not In My Back Yard
NLT - No Later Than
NM - Never Mind or No Message
NOYB - None Of Your Business
NP - No Problem
NT - No Text
NTG - Not Too Good
OIC - Oh I See
OTOH - On The Other Hand
OW - Oh Well
PDQ - Pretty D*mn Quick
PLS - Please
POV - Point Of View
PTB - Powers That Be
PTMM - Please Tell Me More
PTMY - Pleased To Meet You
QT - Cutie
RE - Regarding
ROFL - Rolling On Floor Laughing
ROFLMAO - Rolling On Floor Laughing My A*s Off
ROFLMHO - Rolling On Floor Laughing My Head Off
ROFLOL - Rolling On the Floor Laughing Out Loud
ROTFLSHISMC - Rolling On The Floor Laughing So Hard I Spilt My Coffee
ROTM - Right On The Money
RSN - Real Soon Now
SAHM - Stay At Home Mom
SAHP - Stay At Home Parent
SAR - Smart A*s Remark
SCNR - Sorry, Could Not Resist
SETE - Smiling Ear To Ear
SIL - Sister In Law
SIT - Stay In Touch
SO - Significant Other
SOL - Sh*t Out of Luck
SPAM - SPiced hAM [a common term on the Internet used to refer to unsolicited bulk e-mail]
SRY - Sorry
STS - So To Speak
SS - Step Son
SD - Step Daughter
TAF - That's All Folks
TAFN - That's All For Now
TBC - To Be Continued
TGIF - Thank God It's Friday
TIA - Thanks In Advance
TLC - Tender Loving Care
THX - Thanks
TROLL - To deliberately provoke an argument in a newsgroup, forum or chat room
TTC -Trying To Conceive
TTFN - Ta Ta For Now
TWIMC - To Whom It May Concern
TY - Thank You
TYVM - Thank You Very Much
VBG - Very Big Grin
W8 - Wait
WB - Welcome Back
WBS - Write Back Soon
WOM - Word Of Mouth
WTG - Way To Go!
YKWIM - You Know What I Mean
YT - Yours Truly
AAMOF - As A Matter Of Fact
AF - Aunt Flow, reference to menstrual cycle
AFAIK - As Far As I Know
AFAIU - As Far As I Understand
AISI - As I See It
AKA - Also Known As
ANY1 - Anyone
ASAP - As Soon As Possible
ASL - Age/ Sex/ Location?
ATB - All The Best
ATTN - Attention
B4 - Before
B4N - Bye For Now
BBL - Be Back Later
BBS - Be Back Soon
BC or B/C - Birth Control or Because
BF - Breastfeeding, Breastfed or Boyfriend
BIL - Brother In Law
BION - Believe It Or Not
BOL - Best Of Luck
BRB - Be Right Back
BTW - By The Way
BWL - Bursting With Laughter
C&P - Copy & Paste
CAW - Children Are Watching
CIO - Crying It Out
CU - See you
DD - Dear/Darling Daughter
DH - Dear/Darling/D*mn Husband
DIM - Do It Myself
DIY - Do It Yourself
DK - Don't Know
DLG - Devilish Little Grin
DOB - Date Of Birth
DS - Dear/Darling Son
DW - Dear/Darling/D*mn Wife
EOD - End Of Discussion
F2F - Face To Face
FAQ - Frequently Asked Question(s)
FIL - Father In Law
FWIW - For What It's Worth
FYI - For Your Information
GA - Go Ahead
GBH&K - Great Big Hugs & Kisses
GF - Girlfriend
GG - Gotta Go
GL - Good Luck
GLG - Goofy Little Grin
GMTA - Great Minds Think Alike
GR8 - Great
GTG - Got To Go
HAK - Hugs And Kisses
HAND - Have A Nice Day
H&K - Hugs & Kisses
HP - Home Page
HTH - Hope This Helps
IB - I'm Back
ICQ - I Seek You [an Internet messaging system]
ICU - I see you
IME - In My Experience
IMHO - In My Humble Opinion
IMO - In My Opinion
IOU - I Owe You
ISO - In Search Of
ISP - Internet Service Provider
ITA - I Totally Agree
JK - Just Kidding or Junior Kindergarten
J/K - Just Kidding
JMHO - Just My Humble Opinion
JMO - Just My Opinion
JSYK - Just So You Know
KISS - Keep It Simple Stupid
KWIM - Know What I Mean
L8R - Later
LALL - Live And Let Live
LMK - Let Me Know
LOAO - Laughing Our A*ses Off
LOL - Laughing Out Loud
LTM - Laughing To Myself
LTNS - Long Time No See
LY - Love ya
M8 - Mate
ME2 - Me Too
MIL - Mother In Law
MOF - Matter Of Fact
MYOB - Mind Your Own Business
NBD - No Big Deal
NBTD - Nothing Better To Do
NE1 - Anyone
NIMBY - Not In My Back Yard
NLT - No Later Than
NM - Never Mind or No Message
NOYB - None Of Your Business
NP - No Problem
NT - No Text
NTG - Not Too Good
OIC - Oh I See
OTOH - On The Other Hand
OW - Oh Well
PDQ - Pretty D*mn Quick
PLS - Please
POV - Point Of View
PTB - Powers That Be
PTMM - Please Tell Me More
PTMY - Pleased To Meet You
QT - Cutie
RE - Regarding
ROFL - Rolling On Floor Laughing
ROFLMAO - Rolling On Floor Laughing My A*s Off
ROFLMHO - Rolling On Floor Laughing My Head Off
ROFLOL - Rolling On the Floor Laughing Out Loud
ROTFLSHISMC - Rolling On The Floor Laughing So Hard I Spilt My Coffee
ROTM - Right On The Money
RSN - Real Soon Now
SAHM - Stay At Home Mom
SAHP - Stay At Home Parent
SAR - Smart A*s Remark
SCNR - Sorry, Could Not Resist
SETE - Smiling Ear To Ear
SIL - Sister In Law
SIT - Stay In Touch
SO - Significant Other
SOL - Sh*t Out of Luck
SPAM - SPiced hAM [a common term on the Internet used to refer to unsolicited bulk e-mail]
SRY - Sorry
STS - So To Speak
SS - Step Son
SD - Step Daughter
TAF - That's All Folks
TAFN - That's All For Now
TBC - To Be Continued
TGIF - Thank God It's Friday
TIA - Thanks In Advance
TLC - Tender Loving Care
THX - Thanks
TROLL - To deliberately provoke an argument in a newsgroup, forum or chat room
TTC -Trying To Conceive
TTFN - Ta Ta For Now
TWIMC - To Whom It May Concern
TY - Thank You
TYVM - Thank You Very Much
VBG - Very Big Grin
W8 - Wait
WB - Welcome Back
WBS - Write Back Soon
WOM - Word Of Mouth
WTG - Way To Go!
YKWIM - You Know What I Mean
YT - Yours Truly