Melodramatic Chatspeak, often used by hormonally-deprived girls on AOL Instant Messenger. Means "Oh my Fucking God."
"OMFG! WTF?! I thohught u wur kidding!!1!11!eleventyone!1!"
by Oddz January 23, 2005
Get the omfg mug.
Acronym for 'oh my fucking god'. Usually used as a more extreme version of omg.
Chatperson1: I lost my virginity last night.
Chatperson2: OMFG! That's awesome!

Chatperson1: I just beat the shit out of that ugly whore Nancy Hill
Chatperson2: OMFG XD your my idol!

Chatperson1: I FUCKING HATE YOU.
Chatperson2: OMFG, where is this coming from?
by Epic Tragedy January 29, 2005
Get the omfg mug.
Acronym for 'oh my fucking goldfish' (instead of 'oh my fucking god') used by more religious people.
omfg!!! Matt! Jenny! You have to see this!
by tik_oukla May 11, 2008
Get the omfg mug.
abbreviation for 'oh my fucking god'
Amber: omfg you are LyKe suCh an asshole!11!!!oneoneone!!11!1!!!eleven!!1
Bob: Kill yourself!
by Herbert April 19, 2005
Get the omfg mug.
Oh my fucking god. Stronger version of omg Also XD is commonly used after it in laughing situations.
OMFG! THAT SUCKS!

or

OMFG! XD I cant believe you did that!
by Shadowyoshi13 August 11, 2004
Get the omfg mug.