DOCTOR: For example, there might be another Earth where dinosaurs didn't suffer an extinction event... And after millennia of evolution, are sitting in gentlesaurs' clubs, smoking cigars, drinking port and saying 'top of the morning to you, Rex, old boy.'

CLARA: English?

DOCTOR: No, Scottish. I mean Gallifreyan! See, I've got it now. Pudding-Brain Disease! What kind of pudding will my brain turn into? Baked Alaska? Blancmange? Rhubharb Crumble?

CLARA: We can only hope.