(noun/slang) Complimentary slang name referring to an
attractive, thick female whose attributes (i.e. ass, thighs,
legs, etc.) are proportionally
large, noticable, and desirable. Though not a law, such females can weigh in at the neighborhood of 200+ lbs.
April was a hunka-hunka burnin'
love. That thunder-
butt gal had a body that could
ride your dick into the ground.