The specific origin of this Jonathan yay clip is not documented, which is common for short user-uploaded voice sounds that circulate on soundboards. It functions as a generic celebration reaction rather than a quote from a known show, movie or viral video. Creators keep it in rotation because a clear, friendly human yay cuts through edits better than a synthesized cheer, working for wins, surprises and wholesome payoffs. Its brevity makes it easy to layer, and its lack of background noise helps it sit cleanly in memes, streams and short-form videos.