The phrase translates from Portuguese as a cockroach has appeared, and it circulates online as a short reaction sound rather than as a clip tied to a widely documented film, television show or song. Its appeal is in its directness: listeners understand the alarm even without knowing Portuguese, and the wording is easy to quote, remix and drop into chat conversations. That simplicity has helped it survive as a niche Portuguese-language meme sound, shared mainly for comic disgust and surprise rather than for any single viral moment.