BARMY Meaning of BARMY in English ■ adjective ( barmier , barmiest ) Brit. informal extremely foolish.Derivativesbarmily adverbbarminess noun OriginC15 (in the sense 'frothy'): from barm + -y 1 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004