Tourist: "What's the Blue Man Group show like?"
Me: (hesitates) "It's hard to describe. They're men. Painted blue. The music gets you pumped. They can stick a lot of stuff in their mouth. And there's a LOT of toilet paper."
Tourist: "Toilet paper?"
Me: "Yeah. Don't ask."
I've seen Blue Man twice (or thrice?). Seeing it once would have be enough but it's definitely worth experiencing.