The airhorn comes from the co-op horror game Lethal Company, which became a breakout multiplayer hit in 2023 through streaming clips, group play, and short-form edits. Sounds from the game spread quickly because they fit panic, betrayal, and slapstick timing so well. This particular horn is still used in fan videos and memes because it delivers an instant alarm effect without needing context. Even outside Lethal Company clips, creators use it as a quick chaos cue much like a danger alarm.