The title of this article is a conjectural. Though the topic is found within The Simpsons universe, a proper name is not available.
The Wile E. Coyote couch gag is the twelfth couch gag of Season 19.
Wile E. Coyote paints a fake couch on the wall which the Simpsons run into. The Simpsons run in to sit on the couch, but they get attached to the wall. Maggie comes and says the Road Runner's catchphrase "meep meep", causing The Simpsons to detach from the couch. The family excluding Homer try to sit on the couch, but when Homer tries, he falls and says "Doh".