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!
by D Phil March 04, 2006
Fecal matter trapped in anal cavity and or particles remaining in or around under dressings.
Not wiping properly may result in shit crumbs.
by TheTinglies October 22, 2008