ROOTIN' TOOTIN' Meaning of ROOTIN' TOOTIN' in English ■ adjective N. Amer. informal boisterous, noisy, or lively.OriginC19: reduplication of rooting in the sense 'inquisitive', an early dialect sense of the compound. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004