crusted poo that stays in your butt and itches a lot
i didn't clean my butt well after having explosive diarrea, and now i have a bad case of butt crusties.
by Allen T. McIntosh III April 27, 2003
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The tiny specs of crunchy looking balls of sweaty dirt that fall off on to the back rim of the toilet seat, from just above your ass crack. Similar to dingle berries, these crusty little dustings collect usually after wiping occurs.
"MOM, Michael left BUTT CRUSTIES on the back of the toliet seat again".
by castigrl4 January 4, 2008
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Tiny pieces of feces that reside on the hairs in between your butt cheeks.
Try as I might, the butt crusties could not be removed by wiping. Time for a shower.
by brahm2 September 28, 2003
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A flaky substance that comes out of the butt after u don't wash it for a month.

Good on spaghetti also known as parmesan cheese.
Those are some juicy butt crusties u have there.
by Lance_is_my_fucking_bae_210 March 17, 2017
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A condition suffered from by Ben Anderson, especially after a wedgie has caused anal bleeding.
After my brother gave him a wedgie, his butt crusties were even more unbearable.
by John Doe January 18, 2004
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Something Tim German suffers from each and every day due to his lack of anal cleanliness...
I saw them one day. They were bleeding.
by ButterCruster September 2, 2004
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when you miss a piece of poo when wipeing, and your butt itches for the rest of the day.
"damn my butt wont stop itching! i think i have butt hole crusties."
by buttitches June 16, 2009
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