Among Us was released by American studio Innersloth in 2018, but the multiplayer deduction game exploded in 2020 as streamers on Twitch and YouTube turned its emergency meetings and impostor reveals into shareable moments. Its tense theme music travelled with those clips to TikTok and meme pages, where sus became shorthand for suspicious behaviour far beyond the game, and editors often paired it with sus clapping for extra emphasis. The short sting survived because it needs no context and instantly frames anyone on screen as the impostor.