(Noun) The hardened globules of fecal matter that cling to anal hair with the strength of epoxy resin after one has failed to wipe adequately following defecation.

Sometimes used as an expression of annoyance and/or frustration
I was about to give this gorgeous boi a good rimming, but put my tongue away when I saw butt peanuts

I forgot to turn off the kettle. Butt peanuts!
by vanderspoor August 3, 2011
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The last 10% of a Peanut Butter jar that is so hard to get to with a knife.
Dave opened up the peanut butter jar and exclaimed "Aw man, all that's left is the Peanut Butt!"
by PDXWaterproof June 10, 2015
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An adorable and sexy guy's butt. His butt looks like two peanuts squished together, to create a firm and cute butt. I am in love with this guy and his butt is just the cutest thing ever! (Also known as Cooper)
"Would you look at that butt, it is so small, yet still so sexy!"
"That is because he has a peanut-butt!"
by Buggaboo2coop August 19, 2011
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When one slathers peanut butter on one side of one's lover's ass crack and jelly on the other side of one's lover's ass crack, squishes them together and then licks it up. Must be done while enjoying a 69 this puts the bj is in the pbj.
by Seantel83 December 21, 2015
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When somebody eats so many peanuts that it causes them to fart
Hide the peanuts real quick. Last time he ate so many he had a bad case of peanut butt air
by Lyricalroger September 1, 2014
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