There is no widely documented film, show or viral origin for this clip, and it appears as a small user-uploaded sound credited to Sammy332. Rather than spreading through a single famous scene, it has circulated in the quieter way many soundboard clips do, picked up by creators who need a quick emotional cue for a letdown. Its staying power comes from that simplicity, a sad tone that needs no context, so editors can reuse it whenever a joke, story or reaction needs an instant feeling of disappointment.