The title of this article is conjectural. Though the topic is found within The Simpsons universe, a proper name is not available.
The Skate Ramp couch gag is the fourth couch gag of Season 12.
A skating ramp is set up next to the couch. Marge (with Maggie in hand), Bart, and Lisa successfully do skateboard tricks off the ramp and onto the couch. Homer, however, falls off the ramp and, adding injury to insult, gets hit on the head with his own skateboard.