This sound comes from Among Us, the social deduction game by InnerSloth that surged in popularity in 2020 through streams, memes and short-form videos. The tongue kill animation became one of the game's most recognisable attack moments, so its audio spread beyond gameplay clips into reaction edits and betrayal jokes. It is still used because the sound is brief, instantly readable and strongly tied to the idea of someone being caught, fooled or taken out in a single beat.