The sound comes from Homer Simpson, the central character of The Simpsons, voiced by Dan Castellaneta since the animated series began in 1989. Homer's exaggerated reactions have supplied countless meme clips, and this stretched yes fits his pattern of turning ordinary moments into outsized celebrations. Shared across soundboards and short video edits, the clip became a quick shorthand for delighted agreement without needing any setup. It remains popular because the voice is instantly recognisable, the emotion reads in under two seconds, and it suits both sincere wins and ironic ones.