This clip is mainly used online as a fast reaction sound rather than for a clearly documented source performance. It appears in short meme edits, reposts and chat videos where creators need a recognizable vocal burst of disbelief. Its popularity comes from the stretched delivery, which feels more dramatic than a plain "oh my god" and fits both sincere and ironic reactions. In meme editing, it often fills the same role as anime wow or vine boom sound, giving a quick emotional cue before the next cut.