A YouTube video called Killer Klowns from outer space death pie scene. The first step of the dance is to sit still until the music gets more climatic. Then you pump your fists in the air until the song reaches the climax. Then you start slapping the seat in front of you as hard as you can until the song slows down again.
That killer klown just put on boxing gloves and knocked the biker's head into the trash can, it has to be the meanest thing to ride a motorcycle out there.