B.O.B.S.
A messy butt from way too much butt-fucking or sticking weird stuff up your backside. It’s like your ass got run over by a truck full of poop.
My cousin got B. O. B. S. after trying to fit a whole pizza in his colon.
That guy at the party had B. O. B. S. and it looked like a raccoon came out of his pants.
I got B. O. B. S. from eating a whole bag of marshmallows and a bottle of soda.