Rata Reyna circulates online as a short Spanish-language rat sound, with its published description simply identifying it as a rat noise rather than tying it to a film, show, or named character. That ambiguity has not stopped creators from adopting it as a shorthand for sneaky, greedy, or cheeky behaviour in memes and short-form edits. Its appeal is practical: the clip is only a few seconds long, easy to drop into a video, and instantly understood without explanation. As short videos keep favouring fast, visual jokes, the sound remains a handy reaction cue.