James Smithy's definitions
Where two men, usually gay, decide to take part in a spot of boxing, but instead of fists they use one guys bum hole and the others guys erect cock.
"Barrie is looking very tired today" "Yeah, i heard he was up all nite with Higgie from accounts bum boxing".
by James Smithy January 13, 2008
Get the bum boxingmug.