From Longman Dictionary of Contemporary Englishbooze-upˈbooze-up noun [countable] British English old-fashioned informal DFDDLa party where people drink a lot of alcohol
Examples from the Corpus
booze-up• We usually get together with our friends for a booze-up at Christmas.• I won't be fit for anything tomorrow, she thought, and it's the Christmas booze-up at the shop.• Ian Botham, mastermind of the epic booze-up on the Channel island of Alderney, enjoyed a wicked laugh.• In other words, a jolly good booze-up.• He accompanied his trainees on lunchtime booze-ups in the local pub where he regaled them with stories of his hectic social life.• We rose with several of our colleagues, who spilled out on the fifteenth floor to attend the nightly booze-up.• On occasions such as this, and also on occasions such as coffee breaks, exam supervision and staff booze-ups. 