Breh Breh Share definition Flag A fat guy with huge tits. Commonly found in a cave. Is generally harmless unless one steals its Yoohoo milk or scoops its tits. Don't steal that breh breh's yoohoo milk, he'll smash you with his tits. Breh Breh by cluelezz123 June 7, 2011 0 0 Get merch Get the Breh Breh mug. Buy Now — $32.95 See more merch