gallon booty
a booty so huge it’s like it got hit by a truck. you could put a gallon of paint on it and still have room to write ‘I love my booty’.
My neighbor’s booty is a gallon booty. It looks like it’s about to burst.
That guy’s ass is a gallon booty. I could hide a whole bag of chips in there.
My dog’s booty is a gallon booty. It’s like a meaty hill.