Quote from Kripke in the episode Spoiler: Bert is Magic
Stuart: Isn't there something that you can do? Kripke: Can you fiwe an appeaw? Bernadette Rostenkowski: Not really. I mean, there is a reversal spell that would give me my powers back, but the key ingredient is impossible to find. Kripke: Wh... What are we talking about? Uh, saffwon? Twuffews?
