KNICK-KNACK Meaning of KNICK-KNACK in English (also nick-nack ) ■ noun a small worthless object, especially an ornament.Derivatives~ery noun OriginC16 (in the sense 'a petty trick'): reduplication of knack . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004