The 'Bro Thinks He's Him' and 'I'm Him' memes evolved from sports and gaming culture, where 'Him' refers to a dominant, irreplaceable figure. While 'I'm Him' is a self-assertion of greatness popularized by athletes like Joe Burrow and Stefon Diggs, the internet quickly flipped the script to 'Bro Thinks He's Him.' This variation is used to mock individuals displaying unearned confidence or acting like the protagonist of a movie in mundane situations. It gained massive traction on TikTok and Twitter in 2022, becoming the go-to phrase for humbling anyone showing 'main character energy' without the skills to back it up.