In fictional debates, a high ball refers to a rhetorical technique where one presents an extreme or exaggerated argument or claim in order to provoke a response or highlight the flaws in the opponent's argument. The purpose of a high ball is often to challenge the opponent and force them to defend their position against an extreme scenario, making it easier for the person presenting the high ball to dismantle their arguments. It can be seen as a strategic move to discredit the opponent's position by pushing them to their limits or exposing their weaknesses.
