The origin of Diao 2 is not documented in the information provided with the clip, so it is best understood as a short user-uploaded sound rather than a line from a named film, show, or song. Its title uses the Chinese character 屌, transliterated as diao, followed by the number 2, which suggests it is one entry in a small series of similar uploads. Online, very short clips like this survive because they are easy to reuse: they can be dropped into memes, reaction videos, and fast edits without changing the timing of the scene around them.