1. Someone who, when playing xBox or Playstation on a the same TV against each other, looks at the other player's half of the screen to get an unfair advantage against the other player- Knowledge of where the other player is located and weapons they may have.
Usually in a first person shooter ex: Halo.
"Dude! How did you know know where I was? I had camo and the radar jammer... You're such a rubbernecker!!"