The line comes from Monty Python and the Holy Grail, released in 1975, where Arthur and his knights meet the Knights Who Say Ni in a misty forest. The Knights refuse passage unless Arthur brings them a shrubbery, one that looks nice and not too expensive, later demanding a second one cut down with a herring. The scene became one of the film's most quoted moments, and the shrubbery demand spread through early internet forums, quote sites and meme edits, surviving as a shorthand for absurd, pompous conditions.