The kill noise comes from Among Us, the social deduction game developed and published by Innersloth. The game originally launched in 2018 and became a major online phenomenon in 2020 through livestreams, multiplayer videos, and memes. Its kill animations and accompanying audio became familiar shorthand for betrayal and elimination. Editors still use the brief effect outside gameplay because audiences quickly understand the reference, especially when someone disappears, loses unexpectedly, or reveals suspicious behavior resembling an Impostor.