OMG means...

Overpowered Marshmellow Grenade. ^_^ (see more)

OMG >>> "One Moment Glory" ;)  (see more)

Open Minded Guy <----- I got nothing :( (see more)

OMG....." On My Genetals"......e.g. "......dang.....why you always OMG....." lol (see more)

My OMG would stand for --> Old Mother Goose!!!

haha..kiddish, i know! but it is hilarious to say it out loud in the midst of a group of serous people! =) (see more)

In spanish, means Hey Hansome (see more)

OMG is what i once was:

ONE MILITARY GUY :P (see more)

OMG is: other midget guards (see more)

oh my gulah
 (see more)

OLD MAHATMA GANDHI (see more)

OVER MY GRAVE
ex,, if someone tells you too do something you will never do
you say,, yea OMG!! =] (see more)

OMG (Oh My Gosh): An ancronym used by teenage girls when in suprise, anger or sarcasm

For example: "Omg you just fell out of the 20th floor, are you ok"

Lmao, I got this definition from www.urbandictionary.com

Btw im a teenage girl but you got to admit this is pretty funny (see more)