It might be unintentional, but when you consider the mash-up between the Foo Fighters song "Monkey Wrench" and the Beastie Boys song "Sabotage", what else do you call it when you throw a monkey wrench into someone else's plans? Sabotage.
In DJ Hero 2, when you win a checkpoint battle in Empire mode, your prize is a costume for the DJ you were battling against. The winner's prizes are clothes designed for their enemies.