geeYAT Used in reaction to seeing someone who is unreasonably attractive, or used in reaction/reference to someone with a large butt.
"GYATT look at her!!"
(GodDAMN look at her with the huge butt!!)
"Yeah he's kinda dumb but he got that gyat tho."
(Yeah he's kind of dumb but he has a big butt so he gets away with a lot.)