Bakamon comes from Kochikame, the long-running Japanese manga and anime series centred on the officers of a Tokyo police box, where Daijiro Ohara serves as their stern chief. He frequently shouts the insult at his reckless subordinate Ryotsu Kankichi after another scheme goes wrong, making the word a signature part of his no-nonsense character. Anime fans later clipped the outburst for soundboards and reaction videos, where its short length and unmistakable authority made it easy to reuse. It remains popular because it instantly signals a scolding without needing any translation or context.