Bobby was visiting his grandma and was out playing with some kids in her neighborhood. He came running in to ask her what it was called when two people are in bed, one above the other. She made a quick decision to use the acurate term s----- i----------, then he went back outside. Very soon he hustled back in and said "Grandma, you are wrong, it is called bunkbeds and Jimmy's mom wants to talk to you."