The exact recording behind this clip is undocumented, and it circulates as an anonymous user-uploaded reaction sound with only a few hundred plays. Like many low-effort meme sounds, it spread through short video edits where creators needed a quick audio punchline for underwhelming moments. Its charm is the gap between the word and the delivery: 'yay' promises excitement while the lazy tone promises nothing. It now sits comfortably among deadpan reaction sounds such as the anime wow clip, used whenever enthusiasm itself is the joke.