I'm not actually Cartman's hand, you know.

It's not. It's his hit single. A good hook to get people to check out his other stuff.

In the South Park universe, the penalty for littering is molestation by a guy in an Owl costume.

As a nerd, I chose to believe they were referencing a sci-fi movie and not an action movie.

More like idiotking is a smart fellow with good taste whom I agree with frequently.

You're a lackey, Mackey!

Registered, sir. Glad to be of service. I tracked down what it was referencing back when it originally aired, and having never seen "Altered States," sought it out. It's since become one of my favorite sci-fi movies. Thanks, Matt and Trey.