From Longman Dictionary of Contemporary Englishdoor prizeˈdoor prize noun [countable] American English DLa prize given to someone who has the winning number on their ticket for a show, dance etc
Examples from the Corpus
door prize• A reconditioned 1950 model tractor will be given as a door prize.• The girls swarmed around him like he was a door prize, their looks curious and teasing. 