This sound is associated with Among Us, the social deduction game released by Innersloth in 2018. The vent mechanic became one of the game's most recognizable features during the huge online surge in 2020, when gameplay clips, animations, and reaction memes spread across TikTok, YouTube, and Discord. The vent entry noise stayed popular because it instantly suggests sneaking, lying, or getting caught in suspicious behavior, even outside actual Among Us content.