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pronounced o-mm-geh. often said to exclaim shock at somthing.
we've got another history test, omg
omg by wheatley boy December 21, 2008
Related Words
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.
OMG!! This guy like totally IMed me for sum SEX! Like EWWWWWWW!!
OMG by glitterfaerie January 31, 2003
Omg means Oh My God or Oh my Gosh.

Usally used for a short way to say it or just fun.
"Omg like no way"

"Omg shut the fizzuck up"
omg by Sara & Baylee December 2, 2004
used by eternally adolescent drama queens to exclaim about anything and everything they see, do or hear
'like i was totes like omg and we at this party and i was like o..m....g.....!!! then she phoned me and said he was banged up for the night and i was like OMG lets have a selfie ..totes this is literally me .. selfie'

passer by..

'kills himself'... like, literally'
omg by tom healey August 31, 2016
object management group
A group including IBM, Apple and Sun Microsystem to create a cross-compatible distributed object standard. Later it simply stood for Oh My God.
Person 1: My parents work for IBM who is part of OMG.
Person 2: ?????
omg by V C September 21, 2005
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.
OMG by IGotaOMG September 6, 2009