I was in europe for a competition and the day before my event our coach made us all do suppervised activities so we wouldn't go out drinking or get in any trouble. So we went to the Oslo zoo, and there in the monkey house I saw a type of rainforest monkey with balls the size of fucking grapefruits. I laughed for the next week straight. I commented on the monkey's nuts so often that I think my fellow athletes started to get really creaped out. Anyway, my coach finally burst out...ENOUGH WITH THE FUCKING MONKEYBALLS ALLRIGHT!!! Guess that's the story. Hence the name.