Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Clothes & fashionbum bagˈbum bag noun [countable] British English DCa small bag that you wear around your waist to hold money, keys etcExamples from the Corpusbum bag• She wore a yellow taffeta ball gown with black pumps and matching bum bag for her liver treats! ldoceonline.com