This sound comes from Warp 1.9, a track by The Bloody Beetroots featuring Steve Aoki. Short snippets of its whoop-like hit have circulated online as a quick accent for edits, especially in meme videos and fast-cut content. People keep using it because the sound is brief, recognizable and instantly raises the energy of a clip without needing a long setup. It fits the same exaggerated editing style as the MLG air horn, where a single loud cue can sell the joke.