2. to exert one's self greatly (comes from how one might get an inguinal(groin) hernia from over exertion)
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!
2) Snoop Dogg giving Lisa Lampinelli nicknames: Busta-Bust a nut in your face. And my face, Snoop-Chilli-Dogg-In-Your-Mutha-Fuckin-Mouth.