bubble butt

English

bubble butt (plural bubble butts)

(US, slang) Large, rounded buttocks.
- 2010, Ninie Hammon, Home Grown, Kingstone Media, →ISBN, page 68:
  But her skin was sallow, her face covered in pimples, and she never wore makeup. Then there was her bubble butt and her thunder thighs. Oh, call it what it was: fat. She was fat.
- 2012, A. Scott Boddie, The Hook-Up: Adventures of Maxwell Hunter, link
  Maxwell spun Jhonny and pulled him close until his hot ass pressed firmly against his dick, he grinded^[sic] that bubble butt of his until he could tell Jhonny was sweating in all the right spots.
(US, slang) A fat person.

large, rounded buttocks