(noun) A heterosexual male who prefers boobs over ass, or has a general obsession with boobs. This is usually in regard to discussion between men about which body part (arse or chest) they find most attractive.
The antonym to the boob man is the ass guy.
(Two men discussing women)
Boob Man: Becky has the best rack I’ve ever seen. I want her so bad.
Ass Guy: Yea but her ass is flat as a pancake.
Boob Man: I don’t care.
A fat mexican guy with Man Boobs
Oh my god is that an Adrian with Man Boobs?!