The line comes from Batman, the DC Comics caped crusader created in 1939, whose self introduction became one of the character's most quoted signatures across films, animation and games. The gravelly delivery imitates the darker modern portrayals of the hero, where the hero announces himself instead of explaining anything. Online, the clip spread as a reusable reaction for anyone making an overly serious entrance, wearing black, or appearing from the shadows. Its brevity and instant recognition keep it popular for edits, gaming videos and superhero parodies.