FLUB N. AMER. Meaning of FLUB N. AMER. in English flub N. Amer.informal■ verb ( flubs , flubbing , flubbed ) botch or bungle. ■ noun something done badly or clumsily; a blunder.Origin1920s: of unknown origin. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004