tailgate party
From Longman Dictionary of Contemporary EnglishRelated topics: American footballtailgate partyˈtailgate ˌparty (also tailgate) noun [countable] American English DSAPARTYa party before an American football game, where people eat and drink near their cars in the car park of the place where the game is playedExamples from the Corpustailgate party• It's called a tailgate party.• But the reed-slayers declared victory Sunday with a tailgate party celebrating the removal of an estimated 165 tons of the plant.