Airhorns became a staple of online video during the MLG meme era, when creators used the loud blast to mock or celebrate over-the-top moments, and applause has long been used in broadcasts to signal approval. Combining the two into one short clip gives editors a ready-made celebration that works without any dialogue or context. It spread through gaming montages, reaction videos and short-form edits, where a quick hype cue is more effective than a longer music track. Its simplicity is why it still appears in streams, edits and meme compilations today.