Abbreviated form of oh my god. An exclamation used in conjuction with 'like' and 'ewww' to obviously showcase the declining education of pre-teen and teenage girls. Used to annoy everyone else.
by glitterfaerie January 31, 2003

The abbreviation for the genetic disease "Oversized Male Genitals", in which the genitals are both very long and very thick (commonly mistaken for "Oh my God!").
OMG sufferer: Dad I have something to tell you.
Father: OMG! You're gay!
OMG sufferer: No Dad... I have an OMG.
Father: I knew that you would get that from me.
Father: OMG! You're gay!
OMG sufferer: No Dad... I have an OMG.
Father: I knew that you would get that from me.
by IGotaOMG September 6, 2009

by ablazehustla February 4, 2010

When you break into someones house and they come home and you don't know what to say. Just say OMG OMG OMG LOLOLOLOLOLOLOLOLOLOLOL. Then repeat it. Then all is good and you might even have a girlfriend/boyfriend because your so cool.
by POTATOES ARE ✨QUEEN✨ April 18, 2021

by Dimebag4life May 21, 2008

oh my god. the most commonly used blasphemy in the world. sometimes you sound really stupid using it and other times it is quit appropriate. but mostly it helps fill space in an argument.
by KiKi_14_14 July 5, 2009

Person A: Guess what?
Person B: What?
Person A: I went to the Green Day concert!
Person B: OMG, that is so awesome!!
Person B: What?
Person A: I went to the Green Day concert!
Person B: OMG, that is so awesome!!
by crystal-anne July 16, 2006
