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Butt Crumb 

The little bits of poo left behind after a flush. Butt Crumbs will generally swirl around as the toilet fills, but often settle in the bottom eventually. Phantom Butt Crumbs also exist - they tend to show up after the toilet fills halfway, so even after you check there is still a chance they will show up. Butt Crumbs are most common after eating a big salad or Chinese Buffet, but also occur often during an illness.

also known as 'leavings' by those more cultured.
'dude, did you have a salad today?'
'yeah, howd you know?'
'you left a bunch of butt crumbs in the toilet'
'must have been phantom, i waited after the flush for like a minute.'

also 'when you came to my apartment, you left butt crumbs, in the toilet...Annie are you ok? are you ok Annie?'
Butt Crumb by qbe July 5, 2012

Dust Pan Butt Crumb 

When the janitor is cleaning and he comes across shreds of shitty toilet paper in his dust pan.
Hey did you get that picture of the dust pan butt crumb?
Dust Pan Butt Crumb by Tan Stan September 28, 2023

crumb butt

Full Definition

- Crumb butt: (n) when an unclothed person's posterior who is lying on a mattress or couch has left over food particles stick to it.
"Dammit! I just sat in those potato chip crumbs! I'm such a crumb butt."
crumb butt by TheOriginalCrumbButt November 6, 2013

Butt-Crumbs 

Little pieces of toilet paper left after a poor wipe job. Not limited to any specific gender, age, or ethnicity.
Cheap toilet paper and fast wipes will almost always give you a bad case of itching butt crumbs.

She couldn't wait till the elevator doors closed because she had a bad case of "Butt-Crumbs"
Butt-Crumbs by BigulModemo April 29, 2009

Butt crumbs 

also known as Arse dandruff and Poo-flakes

small specks of poo that fall down on to the toilet seat while wiping. Particularly visible on white toilet seats (but carpets do an excellent job of concealing them). Usually observed among those with hairy cracks and high-fibre diets.
Son: Dad, did Uncle Jim come to visit again?
Father: Yes, why do you ask?
Son: I saw some butt crumbs on the toilet seat.
Butt crumbs by coazeau July 29, 2012

Butt Crumbs 

Sam Suiciide/Komiazyk/Vakalis
Pieces off poo stuck to ones bum from too much anal sex that get hard and look like crumbs and end up everywhere.
Flinders street rat: Hey what are those crumbs on the floor?
Sam: My butt crumbs, sorry!
Butt Crumbs by buttcrumbsspecialist November 22, 2011