The line comes from Frank Miller's 300, released in 2006 and directed by Zack Snyder, where Gerard Butler as King Leonidas shouts it before kicking a Persian messenger into a pit. The scene was parodied endlessly in early YouTube remixes, YTMND pages and forum edits, turning the serious historical epic moment into a universal punchline for defiance. Its short length, clear build up and explosive payoff made it perfect for soundboards and reaction edits, and it remains a shorthand for exaggerated bravery today.