Definitions by Our mom
bivit
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
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