What's for Lunch?

The other day Mom asked me what I had for lunch at school. I told her, "a chicken patty." She was confused because based on the lunch menu chicken patty shouldn't have been an option. So she asked again, "are you sure you had a chicken patty?" I told her yes, I was sure. She asked again, "Not a hamburger?" I then told her, "Well.....they call it a hamburger but it's a chicken patty."