gwaow
The most severe form of wow.
Extra a's can be added for even more emphasis but in most cases one a is pleanty.

Wow<Gwow<Gwaow<Gwaaow
Jimbo: That bitch in the black dress is fine.
Thomas: wow I'm down
Jimbo: Omg check out the one in the high heels.
Thomas: Gwow she must be a supermodel.
Jimbo: Nooooo, the girl in the red is the hotest,
Thomas: Gwaow, I just got big in the pants.