BUMMER Meaning of BUMMER in English ■ noun informal1》 an annoying or disappointing thing. 2》 N. Amer. a vagrant or loafer.OriginC19: perh. from Ger. Bummler , from bummeln 'stroll, loaf about'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004