Little verified information is available about the origin of Yanyantuuwu 365 beyond its listing as a music clip on a user-generated soundboard, so its background is best described through its online use rather than a single source work. Short clips like this one circulate because they are easy to reuse: a creator can play, share or download the 34-second track and drop it into an edit without building music from scratch. That practical reuse, rather than a famous scene or artist, explains why it continues to appear in short videos, streams and meme edits.