Spleny

Yesterday, I brought a fan into the room before Cal's nap.
Cal: Whatchoo got?
Me: A fan.
Cal: I thought you had a spleny.
Me: a what?
Cal: a spleny.
Me: I'm not sure what you are saying, Bud.
Cal: A spleny is a type of house that's real straight. You go up up up in a spaceship to go to heaven to be with God. [Pause.] Then it rains.