The Grinch has long been shorthand for Christmas mischief, and his sudden switch from grumpy to gleeful makes a cheer from him especially funny online. Creators use this short clip as a ready-made celebration cue, borrowing the character's familiar festive energy without needing a long scene or explanation. It fits the seasonal meme cycle each December, when Grinch edits, parodies and reaction videos surge, but it also works year-round whenever someone wants a cheeky, over-the-top victory sound. That instant recognition is why it keeps circulating in edits and soundboards.