Spider-Man: Far From Home gave an official name to the events of Avengers: Infinity War and Avengers: Endgame, and it was one that not many people expected. While most fans were calling it “The Snap”, the movie referred to it as “The Blip”. Well, apparently both are correct, and official.
Kevin Feige explained to Fandango the difference between the two, “We always referred to it as the Blip, and then the public started referring to it as the Snap. We think it’s funny when high school kids just call this horrific, universe-changing event the Blip. We’ve narrowed it down to, the Snap is when everybody disappeared at the end of Infinity War. The Blip is when everybody returned at the end of Endgame… and that is how we have narrowed in on the definitions.”
So that’s a pretty official definition. In Spider-Man: Far From Home, there is a “Snap” reference. One of the in-flight videos is a documentary called “The Snap” with the Infinity Gauntlet on the cover.