When one is playing Video Games for too long and falls dead. Usually due to gaming TOO hard, but can come onset over a few hours.
To prevent Gamer Death, one can either go to the bathroom, get a drink or snack, or take a short walk once every 3-4 hours.
Guy 1: Did you hear that Jim succumbed to Gamer Death yesterday?
Guy 2: Damn, sucks to see another man fall victim to Gamer Death.