The line comes from the Looney Tunes hunting-trilogy shorts directed by Chuck Jones, beginning with Rabbit Fire in 1951. Bugs Bunny and Daffy Duck squabble over whether it is rabbit season or duck season while Elmer Fudd stalks them with a shotgun, and Daffy's frantic insistence became one of animation's most quoted gags. Decades later the exchange spread through YouTube edits, reaction videos and soundboards, where the two-word punchline now works as a standalone meme for any stubborn argument.