a girl that’s fat as fuck
“omg have u seen yasmin? she’s such a big fatass bitch”
Kyle: Cartman, you're such a fatass.
Eric: I'm not fat, I'm big-boned!
Gunna just ate 3 bags of totinos pizza rolls as a snack what a fucking fatass
A person that wears there step sisters panties
YO look at the fatass hes wearing his step sisters panties
(vulgar, slang, derogatory) A round, overweight, or obese person.