Pi Yan Zhao is listed as a very short user-generated soundboard clip, and its public details give no clear original video, creator, character or release date, so it is best understood through its online use rather than a documented origin. The Chinese title translates literally to a crude phrase about the anus, which explains why it circulates mainly as an edgy, juvenile joke sound rather than as a line from a film, show or song. Its sub-second length suits fast meme edits, reaction replies and short-form video, where a single abrupt sound can carry the joke without needing context.