Bum Jumper Share definition Flag Australian slang for a flamboyant homosexual male Noun Hey Dirk, check that bum jumper out in the Miata, he has some throat yoghurt stuck in his goatee from a felching session. Bum Jumper by Bing Tockley January 20, 2009 0 0 Get merch Get the Bum Jumper mug. Buy Now — $32.95 See more merch