The air horn began as a practical signalling device for boats, sports referees and event crowds, where a loud blast could be heard over long distances. Online, it became a staple of gaming montages and meme edits in the 2010s, especially alongside exaggerated victory moments, where a single blast signalled that something impressive or ridiculous had just happened. Its simplicity keeps it popular: no words are needed, the blast is instantly recognisable, and it works equally well for celebration, interruption and parody across short-form video.