Regular Show, Season 1

Sensai:
It's a touching story, really it is, but I don't know if you're ready for Death Kwon Do.

Rigby:
Why not?

Sensai:
Death Kwon Do is all about self defense. But from the sound of it, you just want to hit harder!

Rigby:
Uh, no? Can you just teach me something?

Sensai:
Hmm... Determination. I like that. OK, I'll teach you some beginner defensive moves. All you gotta do is pick from the sacred text of Death Kwon Do. (Holds up a note book) Let's see, we can start you off with the Bicep Flex of Death. Or there's the Leg Lifts of Death. That's a good beginners move, or the Pelvic Trust of Death. That's one of my personal favorites.

Rigby:
That one. That's the one I want, the Death Punch.