A slang term, used in place of the more "correct" term for ejaculation. The term originated from when sperm would bust from the testicles (nuts). Not to be confused with "bust your nuts" meaning to smash the testicles.
"My roomate tried to steal my girl last night, so I bust a nut on his bed."
by Shinigami Kings September 30, 2008
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When one, usually with little impulse control, cannot help himself hold back cumming. When a guy jerks off and then ejaculates, usually in a short period of time, having been highly aroused.
I was so horny, I couldn't help but bust a nut in my pants, while looking at that hot chick.
by Arieh August 9, 2006
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1. to ejaculate
2. to exert one's self greatly (comes from how one might get an inguinal(groin) hernia from over exertion)
John: Yo, Jim's sure busting a nut with the yardwork, eh?
Don: Yeah, his wife promised him as threesome with her lezbo cousin if he gets it done today!
John: Then he'll REALLY bust a nut, eh?
Don: Ideally, yes!
by cyberpope67,BC,Canada January 21, 2009
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To undetake an arduous task (that may not be worth the effort)
"I'm not gonna bust a nut to drive you to Del Taco"
by Hip Ziggy June 12, 2017
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When you just gotta take a rip of some Nutmeg

Busting a Nut, to crack open a nutmeg nut before ingesting and going into the dreamtime.
"Yo man's you be Busting a Nut this weekend?"
"yeah cuz, gonna rip that nut into the dreamtime bro"
by NuttyStrumf February 24, 2018
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