A gay male, usually a gainer, who prefers having his belly fucked over penetrative sex.
Did you see how fat Seth got? He's a total belly bottom.
by saintventre February 19, 2014
Vagina or Front bottom.
My Belly bottom doesn't feel so fresh today.
by boundlesslife December 09, 2010
someones belly that is hairy like their bottom
the swimming teacher has a hairy belly bottom
by belly bottom man April 26, 2003