Tween girl 1: omg!!!! did u see dis video of da poor cows being slauhgterd?
Tween girl 2: omg!! omg!! no!! show it 2 me! i HAVE 2 see dis!!
Example 2 - Off Internet:
Tween girl 1: OMG. I love your shirt.
Tween girl 2: Thank you!
Society: Shun those pitiful children!
Correct Response - "Speak proper, or STFU, N00B!"
Silent then proceeds to sock her in the face.
Simply put OMG means, Oh my god!
Person 2: "O M G. , have they even heard of the word fashion."