The best thing to say when someone annoys you very much. Used to applaud one's stupid acts. Most commonly followed by the word, "asshat".
Random Driver 1 cuts off Random Driver 2.
Random Driver 2: Thank you very much. Yeah, Happy Fuck You Day, Asshat!!!
Random Driver 2: Thank you very much. Yeah, Happy Fuck You Day, Asshat!!!
by Nine December 17, 2004
Get the Happy Fuck You Daymug. by cheeda777 October 1, 2004
Get the Happy fuck day ass mouthmug.