The title of this article is a conjectural. Though the topic is found within The Simpsons universe, a proper name is not available.
The Electrocution couch gag is the fourth couch gag of Season 9.
The Simpsons sit on the couch. Metal shackles restrain their wrists and ankles and a metal cap comes down on all of their heads. The family writhes in pain as they get electrocuted. (Halloween episode)