Wait so is that what he's saying? Omelette du fromage ? Look. I like scientists. I love cheese. And I am crazy about eggs. You tell me a scientist is whispering about eggs and cheese in my ear? I'm blushing to think about it
Badically the premise of the episode is that he built a machine to learn french but he used a cassette tape or something that can get stuck/skip in the machine and it's suppose to work over night when you're asleep. Wouldn't you know it it got stuck/skipped so it just repeated "Omelette du fromage", so when he awakes that is all he can say.