Ross: (handing Monica a check) Here you go. You can pay me back whenever you like.
Monica: You have dinosaur checks?
Ross: Yeah, yeah. I mean, you get your money and you learn a little something. What's wrong with that?
Monica: Nothing, nothing. (checking the amount) Hey, you're a cheap-osaurus! ...I'm kidding, I'm kidding. Thank-you, I'm very grateful.