Air horns have long been used at sporting events, on boats and as handheld noisemakers, and the short blast became a staple sound effect in online videos during the montage parody era. Its louder, layered cousin, the MLG air horn, helped popularise the effect in gaming edits, but this version keeps a single realistic blast. From there it spread to prank videos, reaction edits and soundboards as a universal signal for celebration, surprise or deliberately annoying someone, and it remains popular because one blast needs no context.