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.
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Vagina or Front bottom.
My Belly bottom doesn't feel so fresh today.
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someones belly that is hairy like their bottom
the swimming teacher has a hairy belly bottom
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When someone's bum is so flat it runs at a parrallel to their stomach line.
Michelle has such a pretty face, shame she's got such a belly bottom, she's such a pancake.