Typically a girl between the ages of 18-22 who carries fake designer bags, wears empire-waisted shirts, and generally wears fashion victim clothing bought from Wet Seal, Forever 21, American Eagle, Hollister, etc.

They are usually found stumbling around drunk after drinking minimal amounts of alcohol and acting like they're better than other people. If they get on a guest list at even the most un-exclusive of clubs, they think it's a big deal.

They are distinguished by their fake, slightly-nasally, wanna-be Paris Hilton "accents" and are often over-heard saying, "Ohmigod, Ohmigod" hence the name.

For example: "OMG,OMG. This like, Smirnoff Iiiiice? Is, like, the most fantastic drink evarrrr?"
I will never go to that club again; all those OMG girls made me wanna puke.
by Jenny Sais Quoi October 7, 2008
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An addon for Garry's Mod. Consists of a bullet floating over the player's left index finger. The player fires this weapon by pointing to where the bullet should go. When hit, an NPC flies straight up into the air, and explodes shortly after.
Dr. Kleiner got owned with an OMG missile
by ThePotato June 13, 2011
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abbreviation for Om eye god - referring to one's holyish third eye? Lots of children on trains and buses say it quite often. It's fun to to count how many times you hear it said.
"omg (Om eye god) -was that a cat that woman had in her handbag!" or "Om eye god I think my kundalini just rose a little"
by Zapx August 22, 2008
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A straight guy that has is often mistaken for a gay guy because of his obsession with clothes, lack of guy-friends, love of the mall, love of trendy foods, or frequent use of phrases like "OMG!" or "She is sooooo jealous of you!"
Example: Robert isn't gay, he's just an OMG-Man.

by Tarah for President June 11, 2007
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for those times that you read/see/hear something and your jaw drops and you follow by saying Oh my God. then you think about it and realize that is an OMG moment.
nina's husband tells her that their friend cassie cheated one her husband kevin and got pregnant. nina's jaw dropped and she said Oh my God.

that my friend is an OMG moment
by savvy momma May 18, 2009
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A phrase used when one is angry or fustrated at someone.
Bob:I slept with your wife.
Bill:OMG MONGO!
Bob:I know.
by coco3 August 5, 2009
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When discussion of a film, video game, or novel will reveal spoilers, this phrase prefaces those revelations to warn readers of their presence. Often emphasized with asterisks, bolds, or indented separation from text.

The term is a variant of aol-speak, facetiously paying tribute to the sloppy use of grammar and spelling of over-zealous or immature users on message-boards such as the imdb.
OMG SPOLIERZ~!

Jesus dies at the end of Passion of the Christ, but I heard they might bring him back for a sequel.
by Edward Robins July 9, 2004
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