Girl Sandwich?

Ruby: "Daddy, you're the waiter. I'll have a girl sandwich."

Paul: "What's a girl sandwich?"

Ruby: "You know, a girl cheese sandwich."

Paul: "Is that like a grilled cheese sandwich?"

Ruby: "Yes. And Niko will have a boy sandwich."

Paul: "What's a boy sandwich?"

Ruby: "A boy sandwich is just bread and chicken and cheese and nothing else."