been there, done that, bought the T-shirt
A jocular, sarcastic, or condescending expression of familiarity and/or boredom with a certain situation or thing. Refers to buying a T-shirt as a souvenir from a tourist destination as a memento. Oh, you're going to Paris this summer? Been there, done that, bought the T-shirt.
bought the farm
Died. Did you hear that old Walt bought the farm? What a shame—at least he got to spend 92 years on this earth.