SMUG Meaning of SMUG in English ■ adjective ( ~ger , ~gest ) irritatingly pleased with oneself; self-satisfied.Derivatives~ly adverb~ness noun OriginC16 (orig. in the sense 'neat, spruce'): from Low Ger. smuk 'pretty'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004