Bug Flush Share definition Flag When you finish killing a bug in the house and rather than throwing the tissue out in the trash, you drown the sucker. Damn! Look at that spider on the wall! (Kills spider and runs to the toilet).Nice bug flush, dude. Bug Flush by CranberryKing January 3, 2017 0 0 Get merch Get the Bug Flush mug. Buy Now — $32.95 See more merch