Bum flosser Share definition Flag When your underwear that isn’t meant to be a thing turns into one and you can feel the slow wipe every step you take Catholic mother: “Mary! Pull out your wedgie I can see your bum flosser!” Bum flosser by Laurentheinnocent December 16, 2018 0 0 Get merch Get the Bum flosser mug. Buy Now — $32.95 See more merch