The exact original recording behind this line is not widely documented, so it is best known online as a standalone reaction sound rather than as a quote from a named film or show. Its appeal comes from its everyday wording, which fits almost any clip where a character ignores something clearly strange. Creators on short video platforms and meme soundboards have kept it in rotation because it needs no setup and lands instantly. That simplicity is also why it still works years after similar dismissive one-liners first became popular as reaction audio.