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A large-sized dingleberry, which clings to the hair or wool around the anus.
When she examined her anus in the shower, her fingers encountered a butt nut the size of a soy bean.
by Al January 24, 2003
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similar to a fucknut, but toned down for your grandmother.
by semoore September 04, 2003
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When someone likes your bootay and suddenly you shit on their face
Kasandra was licking me asshole when suddenly she hit the perfect spot and I pooed in her mouth it was the best butt nut Iโ€™ve ever done
by Haylson meateater August 07, 2018
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The situation when Josh Wilson's nuts retreat into his butt, a sign of anger and bewilderment.
Josh Wilson got Butt Nuts after being called poor.
by Lost Endeavor October 13, 2008
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One who is nuts for butts, that is, an anal sex enthusiast. Can refer to straight or gay people, though it is likely to be taken as offensive when used to describe a gay person.
Remember that girl I started hooking up with at the party? Turns out she's a total butt-nut. Fortunately, she's really anal about personal hygiene.
by Vulgaris Tunge April 01, 2005
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