This sound comes from Among Us, the social deduction game developed by Innersloth and first released in 2018. It became especially widespread during the game's huge online surge in 2020, when clips of meetings, betrayals, and impostor reveals flooded streaming platforms and short-form edits. The Emergency Meeting cue stuck because it communicates panic and accusation in under two seconds. Online, it is still used far beyond the game itself whenever a video needs an instantly recognizable "somebody explain this" moment.