The 'Joker Arc' (or Jokerfication) meme refers to a personal transformation where an individual reaches their breaking point and embraces a cynical, nihilistic, or 'villainous' persona, often referencing Joaquin Phoenix's 2019 portrayal of the Joker. It typically highlights a moment of social rejection or a minor frustration that acts as the final straw for one's patience. The term gained massive traction on platforms like Twitter and TikTok, evolving from serious discussions about character development into a satirical way to describe overreacting to daily annoyances. It is frequently paired with images of Arthur Fleck dancing or applying makeup to symbolize a dramatic, albeit often humorous, descent into madness.