little pebbles of poop that hang from your rectum.
i gave a rim job last night and when i
went down to lick it she had the most gnarly saint joseph crumbs i ever seen doggie!!!!!!
by shmoop shomp September 1, 2010
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Crumbs or pebbles made of feces that gather around the anus and/or are tangled in the ass hair.

This usually occurs when an individuals ass wiping efficiency is inadequate.
Bro Montana: I was more than ready to tongue punch her fart box, but you would not believe the overwhelming amount of Saint Joseph Crumbs this broad had tangled in her ass fro!

Mighty bro young: Thats quite disturbing, buttttt did you smash?

Bro Montana: Listen here you Jabroni! I am a fucking gentleman!.....yes I did.
by Inebriation proclamation December 24, 2018
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