Sussy comes from sus, slang for suspicious that spread widely through Among Us after the game surged in popularity in 2020. Players used sus and sussy to accuse crewmates of acting like the impostor, and the words quickly moved into TikTok, YouTube edits and gaming chats as a general joke about shady behavior. Short soundboard clips of the cue followed, letting creators make the accusation without saying it themselves. It remains popular because the meaning is instantly understood even outside the game.