This sound is mainly known online as a Spanish disbelief reaction used in short meme edits, reposts and chat-style videos. The phrase itself is common everyday Spanish, and the clip spread because it is quick, readable and easy to drop after a suspicious claim. Its popularity comes from how flexible it is: creators use it for sarcasm, denial, side-eye humor and blunt reactions without needing a long setup. Even outside Spanish-speaking audiences, people recognize the tone instantly and use it as a universal meme response.