The DJ horn is a widely used sound effect rather than a quote tied to one character or scene. It became popular through club-style audio drops, meme edits and short-form videos where creators needed an instant burst of hype. Online, it is often treated like an airhorn cue for jokes, celebrations or ironic overreactions. Its staying power comes from how recognizable it is: one quick blast can turn a basic cut, reaction shot or visual punchline into something that feels louder and more exaggerated.