Sussy grew out of sus, the quick accusation players typed and shouted during Among Us matches when the game surged in popularity in 2020. The extra syllable made the slang sound cuter and funnier, so it spread into TikTok edits, Discord chats and gaming videos far beyond the game itself. It is now used for any dubious behaviour, not just impostors. Fans looking for similar clips often pair it with the Among Us role reveal sound for a longer reveal joke.