Short vocal clips like Nyah Passu spread mainly through soundboards, meme edits and short-form videos, where a single distinctive sound can become a reusable joke in its own right. Creators save and replay it because it is instantly recognisable, easy to drop into a timeline and short enough to fit between dialogue or music without slowing a scene. Its appeal lies in that combination of cuteness and silliness, which works across pet videos, anime-style edits, reaction clips and playful pranks. As long as creators want a quick, lighthearted punctuation sound, clips like this keep circulating.