Don't worry, he tells it in English too if you don't sprechen Deutsch.
Pratt was on Conan on Tuesday night when the topic of being fluent in other languages came up and while the 'Passengers' star says isn't fluent in German, but he does know how to tell a dirty joke about man named Peter and his pig.
You'll probably have heard it in some form before but Pratt's delivery makes it even better.