Ballbusting

Ballbusting involves causing pain to the male testicles, usually by a woman, via kneeing, kicking, stomping, punching, grabbing, or basically any other mode of attack. It can be done for self-defense purposes, during martial arts, or just for pleasure. Consensual busting is usually done for pleasure and is often more extreme, with both sides consenting, while the ballbusting shown in V.O. comics, although the women do greatly enjoy it, is done during fights when attacking males.

Cuntbusting
Cuntbusting is a much less popular and rarer version where a woman is hit in her privates, and although there are a couple examples in V.O., but cuntbusting is far less common than ballbusting.