Ratatouille is a verb used when you add your own secret personal flavor of spices, salt and condiments to your served meal, making it better and bursting to live in your mouth.
I made the food they served me at that restaurant come to live because i ratatouilled it.
Mid-intercourse, you swap places with a tiny mouse without telling your partner. If done successfully, the move culminates many months later when you start a restaurant with the mouse.