The spelling miauuuu follows the way meow is written in Spanish and Portuguese, miau, stretched with extra vowels to show a longer, more dramatic cry. Clips with this title have circulated on user soundboards as a generic cat sound rather than a line from a known film, song or show. Its appeal comes from that simplicity, so it gets reused across short pet videos, reaction edits and chat audios where a viewer needs to understand the joke instantly, even with the video muted or played without any context.