The uoiouoio clip circulates on user generated soundboards as a short nonsense meme sound with no clear source work or credited creator. Its name is simply the sound spelled out, which makes it easy to search and share as a reaction noise. Short vocal loops like this spread through reposts, edits and soundboard collections because they need no context to land. It stays in use for the same reason other random vocal memes do, it fills a pause, mocks panic and signals that nothing serious is happening.