Bonjour or "Bone Joe"

At the library Explorers Club today, the kids made pasta skeletons. Boogs asked another child to write "Bone Joe" on his paper to name his skeleton. Later, when we were in the car, Boogs asked me if I "got it". I had no idea what he was talking about. He smiled and said, "Bone Joe is kind of a joke like saying hello in French. Get it, Momma?" He is a clever boy.