ROMANA: We both know that I'm more qualified to work on antique TARDISes than you are.

DOCTOR: Antique? I'll have you know my TARDIS is far better than any standard Type 40. I've put in a lot of loving care and attention. She's- she's virtually custom-built.

ROMANA: Custom built? I believe the relevant Terran phrase you're looking for is 'jerry-built.'

DOCTOR: Shh! Don't listen to her old girl, don't listen! She doesn't know what she's saying.