The line comes from DreamWorks' Madagascar: Escape 2 Africa (2008), the sequel in which Mort, the small mouse lemur devoted to King Julian, follows his king through the African savanna adventure. The short shout was later clipped for soundboards and meme edits, where Mort's frantic devotion became shorthand for eager, slightly obsessive fandom. Its popularity endures because the character is instantly recognisable from the films and the delivery is short, clear, and easy to drop into a reaction, a gaming clip, or a comedic entrance.