Gyatt

Noun: A fat ass, typically on a woman. The most common use of the term.

Verb: Replaces 'got' sometimes to fit the word as onomatopoeia into an unsuspecting sentence to signal to a friend what they see, but without notifying too many people or drawing attention.
Onomatopoeia: An exclamation in reaction to seeing a fat ass. Like saying 'WOW!' or 'WOAH!', but specifically for seeing a fat ass.

Noun: "Wow you have such a gyatt!"
Verb: "I've GYATT something in my eye!", "You've GYATT to be kidding me."
Onomatopoeia: "GYATT!" (As a reaction to seeing a woman with a fat ass)