Online, this clip circulates mainly as a short Spanish reaction sound, shared in memes, short videos and messaging threads where a claim needs an instant dose of disbelief. The phrase itself is plain, everyday Spanish for saying that something is hard to believe, which helps it travel beyond any single joke or context. Because it is under seven seconds long, creators can drop it cleanly at the end of a setup without trimming, and listeners recognise the skeptical tone even if they do not catch every word.