A German thing
When a girl says she wants to do a German thing, you know she wants to eat your poop, so you better eat a big meal before your date or you’ll be the joke.
She asked, 'Wanna do a German thing?' I said, 'Only if I can bring a pizza.'
He said, 'I eat poop for a living.' I said, 'That’s a German thing.'
She asked me if I wanted to eat her poop. I said, 'That’s a German thing, I’m in.'