CACHOU Meaning of CACHOU in English [ 'kaʃu: , kə'ʃu: ]■ noun ( plural ~s ) dated a pleasant-smelling lozenge sucked to mask bad breath.OriginC16 (in the sense 'catechu'): from Fr., from Port. cachu , from Malay kacu . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004