The game system that a small child is *actually* playing, as opposed to one that they *think* they are playing, when you give them a controller that is not connected to anything.
Player 1: Jane, come over and we can gank some scrubs on Call of Duty!
Player 2: I don't think so Wendy, your kid gets upset when she doesn't get to play.
Player 1: Don't worry about that, she's like, 4. I can just let her hold a spare controller and she can play the pretendo!