Couch Nutter Share definition Flag A guy who while attending a gangbang blows his load before he even gets his turn, usually on the couch while masturbating or getting fluffed. We had two couch nutters at our last gangbang that we won't be inviting back. Couch Nutter by bullforcouples69 January 15, 2021 Get the Couch Nutter mug.