stinky bumhole Share definition Flag A bum hole that has had a lack of cleaning, could be overgrown with bum hole hair, or just be clogged up with shite. And emits an unpleasant odour. As Andy bent over I got a wiff of the dirty bastards stinky bumhole . stinky bumhole by WoggleDaGrafter March 29, 2017 Get the stinky bumhole mug.