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1) the little pieces of poopy that get stuck to your butt when pooping and wont come off no matter what unless you wipe it off : if so, see definition #2

2) the little crusty pieces of poopy that are all dried up and stuff and got stuck to your pubes when you wiped you butt
1) no matter how hard he slammed his butt against the toilet seat, the bivit would not let go.

2) as she put her hand down his pants she was confused at finding the bivits stuck to his pee-pee mostache
by our mom January 18, 2007
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Little tiny shit balls that were missed when wiping.
Yo Bitch..clean da bivits out cho teef. Skank ass ho
by onenut March 05, 2003
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