A slightly more advanced and profane version of its predecessor, omg.

Translates to "Oh My Fucking God" and is more often used in response to something lame, vulgar, and downright obscene.

Johnny: Oh man, I think I'm gonna be sick
Nancy: You'll be okay, just relax
Johnny: No, really I think I'm gonna vomit
Nancy: Just calm-
::Johnny vomits::
Nancy: OMFG!!!!! I just bought these stilettoes yesterday, johnny!!!
by herowneulogy September 05, 2005
OMFG is a more dramatic version of OMG, (Oh my fuckin god) it can also refer to another meaning: Oh my forgiving god
Guy 1: hey dude have you seen my new car? it's fucking amazing
Guy 2: yes, OMFG that's one nice car indeed
by ThatPersonOverthere333-0 August 26, 2012
It means "Oh My Fuckin' God!" It's a cybernetic and instant messaging word, it's a modification of OMG (Oh My God).
Justin: Man, my grandma died!
Alex: Really!? OMFG!

by R0DR1G0 October 27, 2008
Something you say if you don't care about your soul forever being banished to the fires Hell!
From the Bible: Thou shalt not take the Name of the Lord, your God, in Vain...NOT "your OMFG"
by Saving Souls May 14, 2009
"Oh my fucking God" for short. Ususally used in AIM conversations and other chat-room things. A common expression of excitement, awe, surprise or anger
1.OMFG U R SUCH A n00B LOL!!!!!!111!1eleventy!!1

2.STFU!!!1 OMFG!!11

3.OMFG ur sO annoyAnG!!1111

4.did that guy just jump through a ring of fire?? OMFG!!
by stimlag November 14, 2006
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