KIBOSH Meaning of KIBOSH in English [ 'kʌɪbɒʃ ](also kybosh ) informal■ noun (in phr. put the ~ on ) put a decisive end to. ■ verb chiefly N. Amer. put an end to.OriginC19: of unknown origin. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004