Monkey Knife Fight
Illegal practice of pitting monkey against monkey, both armed with a knife or blade of some description.
Portrayed on a Simpsons episode where Homer is house-sitting the Burns Mansion. He takes Mr. Burns' yacht out into international waters in order to escape the rules and ethics imposed by American society.
Quote: "Smithers, this monkey is going to need most of your skin" - Burns, referring to the survivor of a Monkey Knife Fight