The One with Unagi

Phoebe: Now, we can kick anybody's ass!

Rachel: Yeah!

Ross: After one class? I don't think so.

Rachel: What? You want to see me self-defend myself? Go over there and pretend you're a sexual predator! Go on! I dare ya!

Ross: Well, of course you can defend yourself from an attack you know is coming, that's not enough. Look, I studied karate for a long time, and there's a concept you should really be familiar with. It's what the Japanese call unagi.

Rachel: Isn't that a kind of sushi?

Ross: No, it's a concept.

Phoebe: Yeah, it is! It is! It's freshwater eel.

Ross: All right, maybe it means that too.

Rachel: Ooh! I would kill for a salmon skin roll right now.

Ross: Y'know what? Fine! Get attacked! I don't even care!