coat the bowl Share definition Flag Explosive diarhea usually combined with powerful farts that result in a shit-splattered toilet bowl. I didn't want to, but I had the shits so bad I knew it was unavoidable to coat the bowl. coat the bowl by charlygordon123456 July 25, 2006 0 0 Get merch Get the coat the bowl mug. Buy Now — $32.95 See more merch