Shit Crumbs Share definition Flag The flaky dry substance of fecal matter combined with toliet paper that is found on bathroom toliets This toliet has not been cleaned in ages, look at all of the shit crumbs! Shit Crumbs by D Phil March 15, 2006 0 0 Get merch Get the Shit Crumbs mug. Buy Now — $32.95 See more merch