To explain the joke, as is tradition in Germany. "To meet" translates to "treffen" in German. Which can also mean "to hit something or somebody".

Once had a multicultural family gathering where we translated the same joke into several languages.

A man knocks at a door. A woman opens and he says: "Hello, my name is Toulouse. I'm here to fuck your daughter." The woman screams: "To what?!?" He answers calmly: "Toulouse."