The 'I'm vengeance' line is closely associated with Batman, particularly his brooding portrayal in The Batman, where the phrase became a defining introduction for the character. Online, creators stripped the line from its serious film context and paired it with self-deprecating captions, lonely edits, and dramatic reveals, turning menace into a punchline. This version leans into that contrast, opening on loneliness before landing the darker payoff. It remains popular because the line is instantly recognisable, easy to place over a reveal, and flexible enough for both sincere fan edits and ironic memes.