It's supposed to mean "Oh my god", however it fails in several ways...
1. If you don't believe in God, then what is the point of it all?
2. If you do believe in God, most god-believing people think it is a sin to use God's name when not praying.
Abbreviation for "Oh My God". An expression of surprise, anger or disbelief. Used often in text messages and badly written emails. Used mainly by teenage girls, even if the event isn't all that surprising.
Girl 1: Omg, i just totally hooke dup with Ryan!
Girl 2: Omg what!
Mostly used by young, immature teenage girls. Makes you look like a blonde idiot.
Acronym for:
1. Oh My God
Oh My Gosh
2. Oh My Goodness
3. Oh My Goth 4. Oh My Gayness
5. Oh My Genitals
1. OMG! Dan Radcliffe is like, so effin hott!!
2. OMG, I left the kitchen on fire!
3. OMG. That skirt is very gothtastic. Bring in Halloween, 'cause we're going to throw a gothtastic party. OMG!
4. Ooh, OMG! <3333 Buttsecks! ^-^
5. Faster, you're making me cum! OMG!