1. The term for an adorable girl you meet at large scale festival such as Burning Man. She wears a furry hat with googly eyes in it and is notorious for swooping in and making you fall in love with yourself.
2. A sweet person who supports you and your passions.
When a human being is so out of control it is as if they are being controlled by a muppet. (The implication is that the human has a muppet's hand up his or her ass, controlling his or her every move.)