Sé idiota circulates online as a short Spanish-language reaction sound, shared in meme edits, gaming clips and messaging chats rather than tied to a widely documented film, show or viral moment. Its appeal comes from its brevity and clarity: the phrase is instantly recognisable to Spanish speakers, easy to understand from tone alone, and short enough to loop or place over a single action. That combination has kept it useful as a lighthearted roast, especially in informal videos where a quick, teasing response works better than a longer insult.