Joker is the codename for the protagonist of Persona 5, Atlus's stylish role-playing game first released for PlayStation consoles in 2016. Short vocal clips like this yell are commonly ripped from combat and cutscene moments and shared on soundboards, where they take on a second life outside the game. Fans use the shout as a compact burst of confidence and defiance, which is why it keeps appearing in edits, memes and reaction videos long after the game's launch.