Boobs guy

A man who's into a women's boobs in an outsize manner in relation to the rest of her. A boobs guy will often go after and tolerate fat chicks many men wouldn't because the sole thing he cares about are her gigantic boobs.

"Do you get why Nick is into Sarah? She's huge!"

"Dude Nick's a boobs guy, he'll go for a chick no matter what she looks like as long as she has huge tits."