To reverse to an earlier part of an argument and alter and reuse it later on in the argument. Kind of like how literally backpedaling on a bike makes it reverse, so you can change directions after going the wrong way.
Person 1: The PS4 is selling more than the Xbone!
Person 2: But it doesn't have many games.
Person 1: Your Xbone is still selling less than the PS4!
Person 2: Keep backpedaling.