Among Us was released by Innersloth in 2018 and surged in popularity during 2020, when its hidden imposter gameplay became a staple of streams and memes. Players shortened suspicious to sus and then to sussy, turning quick accusations into a running joke far beyond the game itself. The phrase spread through TikTok, YouTube edits and Discord servers, often paired with the red crewmate image and the word amogus. It remains popular because it captures playful paranoia in two instantly recognisable words.