[origin obscure, possibly Yiddish or Anglo-Hebraic] slang 1) in the phrase to put the kibosh on, to dispose of finally, finish off, check or stop 2) nonsense, rot, stuff, humbug 3) the proper style or fashion (senses 2 and 3 are mainly archaic)
1.tv. to end something; to squelch something. Please don't try to kibosh the scheme this time. 2.n. the end; the final blow; the thing that terminates something. (Usually with the. See also put the kibosh on sth.) They thought the kibosh was overdone.
noun
/'kaɪbɒʃ/
Also kybosh
/'kaɪbɒʃ/ Also kybosh noun 1:to put the kibosh on to put an end to, finish off, do for. (1834 —) . Sunday Post (Glasgow): She'd been looking forward to some salmon fishing, but the heatwave's put the kybosh on that (1975).verb trans. 2: To finish off, do for. (1884 —) . Listener What a pity that the stipend has not kept pace...with the fall in the value of money (and it even comes to you less PAYE, thus kiboshing manoeuvrability in the field of expenses!) (1969).
[Origin uncertain; perh. from obs. costermongers' slang kyenoun, eighteen pence (from Yiddish kye eighteen) + obs. slang boshnoun, pence, the underlying notion perh. being a 'derisory sum' (cf. to give someone a fourpenny one).]