The title of this article is conjectural. Though the topic is found within The Simpsons universe, a proper name is not available.
The Treadmil couch gag is the eleventh couch gag of Season 9.
The floor is a treadmill. Marge, Lisa, Bart, and Maggie run in place for a few seconds, then successfully dismount, while Homer gets stuck on it, yelling, “Marge, stop this crazy thing!” a la George Jetson in the original closing credits of The Jetsons.