Justin Y. is a legendary figure in the YouTube community, known for his seemingly impossible ability to comment on almost every trending video. His profile picture, often featuring a stylized anime character, has become a symbol of internet ubiquity. The Justin Y. meme usually revolves around the shock of finding him in the comment section of obscure and popular videos alike. Starting around 2017, his presence sparked countless theories about whether he is a single dedicated fan or a sophisticated bot. Today, users create memes to celebrate his status as the king of YouTube comments or to express the humorous feeling of being followed by his avatar across the platform.