Add another unintentionally hilarious moment to the piles that Elliott has already created.
We had been discussing getting married and how people become, say, Mr. & Mrs. Swinerton. He was surprised that people who were married didn't have the same parents. This lead to...
E: Mom, who will I be when I grow up.
Me: You'll be Elliott Robinson Giessler, of course! Well... you could change your name if you really wanted to.
E: No, you can call me Elliott Robinson Tiessler.
Me: That's just silly.
E: Oh! I know! You can call me Late for Dinner!!
I love kids' misunderstandings of tired jokes.