ROSE: What've you been doing? Where've you been?

DOCTOR: Well, among other things, I think just invented the banana daiquiri a few centuries early. Do you know, they've never even seen a banana before. Always take a banana to a party, Rose. Bananas are good.

(The Doctor turns toward the Clocwork Droids)

Doctor: Oh ho, ho, ho, ho, brilliant. It's you. You're my favourite, you are. You are the best! Do you know why? Because you're so thick. You're Mister Thick Thick Thickity Thick Face from Thicktown, Thickania. And so's your dad.