From Longman Dictionary of Contemporary Englishdrinks partyˈdrinks ˌparty noun [countable] DLDFD British English a party at which alcoholic drinks are served and where you mainly talk to people SYN cocktail party
Examples from the Corpus
drinks party• They were indistinct at first, like the hum of conversation at a drinks party.• They are the ideal tasters for a drinks party or guests who are just arriving.• For a drinks party, five or six savouries per person is about right. 