bumboxer 

One who likes to box another man's bum, for the sexual enjoyment that only two gay men can really fully enjoy.

"yeah, you know Barry, he's that bumboxer, he's always boxing other mens bums"

bumboxer by EL LOBO April 8, 2007

Bare bum boxer 

A male homosexual, someone who enjoys removing his trousers and "boxing" another male's posterior

That Neil is a right bare bum boxer

Bare bum boxer by The Big M July 30, 2008