The Leeroy Jenkins moment comes from a 2005 World of Warcraft video by the guild Pals for Life. While his group carefully planned an attack in Upper Blackrock Spire, Leeroy returned from being away and charged straight into a room full of dragon whelps, shouting his name and wiping the whole raid. The clip spread rapidly across gaming forums and early video sites, turning the name into shorthand for reckless confidence. Blizzard later referenced it in game, and the yell remains a staple gaming meme.