n. worms, normally nocturnal in nature, that enter and exit through the anus
Last night my butt worms peeked out to say hello.
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Sticking ones finger in the anus of another while they walk up the stairs. Usually accompanied by a wiggling motion and shouting "Butt Worm!"
I was walking up the steps and my girlfriend totally Butt wormed me!
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A Butt Worm (or pinworm) is a parasite often found in feces, and the eggs can be spread about very easily upon contact. Having Butt Worms often leads to itchy/crawly sensations
It's a good thing I don't work in the stables, I don't wanna get any butt worms.
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Mexican butt-worms are what you pick up in mexico after eating from a taco cart or tamale stand that is less than sanitary. They are also different from other butt-worms because they wear sombreros.
Did you hear about Steve's trip to Tijuana? He got a bad case of the mexican butt-worms after eating at a filthy taco stand.
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When you see something that scares or disgusts you so much... that you clinch your buttcheeks so tightly, that not even a worm could get inside.
That new Nitemare on Elm Street movie gave me worm butt!
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