I was telling my girlfriend a joke

Me: Once there was a king who married a farmer’s daughter. But the girl, who came from a different background, couldn’t understand everything. So she kept asking the king about everything, and the king always replied by saying “suck my d!ck first, then I’ll tell you.” For example, the girl: *pointing at the palace* “what’s this?” The king: “suck my d!ck first, then I’ll tell you.” One day, they went for a hunt and they saw a lechu.

My girlfriend: Tf is lechu?

Me: That’s a very good question.