Leeroy Jenkins originated in a 2005 World of Warcraft video shared by the guild Pals for Life, where player character Leeroy suddenly returns, shouts his name and charges into a room full of enemies, wiping his entire raid group. The staged clip spread rapidly in early internet gaming culture and turned the name into shorthand for heroic recklessness. It has since been referenced in games, shows and memes for years, remaining one of the most recognisable battle cries from online multiplayer history.