Sussy comes from Among Us, the online social deduction game released in 2018 that surged in popularity in 2020, where players call crewmates suspicious or sus for short. By 2021 sussy had become standalone slang and a TikTok and YouTube joke, remixed into songs, voice filters and exaggerated autotune covers. Creators kept stretching the word because the robotic tuning made a simple accusation sound like a pop hook. It now sits alongside goofy ahh sounds in meme soundboards and is still dropped into edits whenever someone is acting suspicious for comedic effect.