Someone, somewhere thought it would be a really fun idea to organize World of Warcraft players into a what can only be described as a mutant bastard offspring of a flash mob and an orc invasion. The results of this endeavor is shown in this video posted by Glaze Bros: a seething mass of green, naked orcs, swarming their way across Azeroth in search of a good time at Gurubashi Arena, one of the very few places in the World of Warcraft where players are PvP flagged and can fight one another.

End result: chaos, many deaths, and probably a good time had by most.