When a guy nuts really fast, and it comes out really, really thick
"Dude I'm meeting up with that waitress from the bar later"
"Damn boi, bust a butternut!"
by Pippypie123 January 17, 2017
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A man who cannot keep his load, or, in other words, cums too soon.
April: "Last night I had sex with Charles, it ended too fast.."

Janis: "Wow, he's such a butternut."
by Lady Missy May 8, 2010
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One of the best funniest words to hear in a british accent that will make anyone laugh.
Sam: im so depressed -cries-
Jack: :( ~in a british accent~ butternut
Sam: hahaha.
by Sky Vanity October 2, 2014
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A butternut is when you use butter as a lubricant, then cum into a small crater in the butter and freeze it over night which then the next day you will eat it while it is still frozen
“Me and my wife had some butternut and watched the football
by Butternutgod July 19, 2018
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a small round nut dipped several times in butter. Eaten by the most obese of wisconsin society (Mrs. Hose).
Butternut(s) can be used in many diffrent recipes for instance the butternut candy bar...1 stick of butter with large butter nuts protruding from every inch of its surface.
She dipped her husbands small genitals in BUTTERNUT sauce before she licked them clean.
You little shit, give me my god damn butter nuts before i fucken cream my jeans and fucken eat your ass out.
Mrs. Hose shrilled in pleasure as she rammed her face full of the delectable butter nut.
And one final example!
Mrs Hose bathed in the butter nut as she squirted butternut shampoo over every inch of her 500lb body.
by Steve January 13, 2005
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an outcry of displeasure uttered by a gay man or just a very feminine man
gay man drops a plate and then says "Oh butternuts"
by Anonymous July 30, 2003
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