The line comes from Stanley Kubrick's 1980 adaptation of The Shining, starring Jack Nicholson as writer Jack Torrance. Nicholson improvised the phrase as a nod to Ed McMahon's introduction of Johnny Carson on The Tonight Show, turning a late-night catchphrase into a horror landmark. The scene became one of the most quoted moments in cinema and later spread widely as a meme sound for dramatic entrances, parodies, trailers and reaction edits, keeping the delivery recognisable far beyond horror fans.