skid mark

an elongated stain in the rear of one's underwear caused by one of the following: 1)rubbing of the underwear on an insufficiently wiped anus after excrementing 2)expelling juicy farts (butt cheese) into the underwear over an extended period.

"I think my underwear has a skid mark from farting all day"

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butt cheese

The pasty accumulation of farts in your underwear.

I gotta wipe the butt cheese from my crack before it makes a skid mark on my underwear.

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poop pusher

1) slang for a male homosexual 2) any male who gives anal sex to a woman or a man 3) a person who inserts objects into another persons ass.

"John loves the gay bars. He knows he'll meet plenty of poop pushers there."

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