The title of this article is a conjectural. Though the topic is found within The Simpsons universe, a proper name is not available.
The Squashed Bart couch gag is the first couch gag of Season 1. It is also the first couch gag ever used in The Simpsons.
The Simpsons sit on the couch, but Bart gets squashed and shot into the air. He reappears six seconds later falling in front of the television.
Behind the Laughter
This is the first couch gag to continue into the shot of the TV. The only other couch gags to do the same thing are ones for Season 26
's The Wreck of the Relationship
(the Itchy & Scratchy couch gag
) and Season 28
's Dad Behavior
(The Bart Gets the Remote couch gag
; unless you count Season 23
's Simpson Biscuits couch gag
as continuing into the TV shot with the decorations, and Season 25
's White Christmas Blues
, for the same reason).