The exact origin of this gasp is unclear, but the published notes describe it as a sound effect heard in some Chinese videos, where exaggerated reaction audio is a staple of short-form comedy. At under half a second long, it circulates online as a punchy shock reaction for memes, shorts and fail edits, in the same family as the Emotional Damage meme and other over-the-top Asian comedy sound bites that turn surprise into a joke.