mashed potatoBrE /ˌmæʃt pəˈteɪtəʊ/ 🔊NAmE /ˌmæʃt pəˈteɪtoʊ/ 🔊 (also ˌmashed poˈtatoes, mash especially in BrE ) noun [uncountable] potatoes that have been boiled and crushed into a soft mass, often with butter and milk 土豆泥，马铃薯泥（常调入黄油和牛奶）