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
Used to explain such anger or stress that the strain would split the testicle(s)
Dude, if you don't finish the before the deadline then they're gonna bust a nut!

I wouldn't be surprised if that bomb defusal squad bust a nut.
by Chainsaw Panda June 16, 2011
1) To be overcome with extreme anger and rage to the point where you bust another man's nuts with a baseball bat.
2) Ejaculate
I've been waiting 1,177 years to play the Xbox One! And if I don't get to play real soon, I'm gonna bust a nut!!!!
by DarthKieduss December 24, 2013
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 29, 2008
When one comes or also known as ejaculate
A man won't stop till he bust a nut and is over come with pleasure
by oops did i do tht ;p January 21, 2012
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