sphincter jizz Share definition Flag having the 'trots', the 'runs' - or anything else that could be attributed to "pissing out your asshole" Ew! Somebody left sphincter jizz in the toilet. Ass didn't flush! Check the splashback too! sphincter jizz by definition_master November 6, 2009 0 0 Get merch Get the sphincter jizz mug. Buy Now — $32.95 See more merch