As in, to put the kibosh on. Not my favourite word but an interesting one, mainly because the origin of this word is largely unknown. There are a few theories as to it's origin, but none have been proven.
Anyway, I'm considering putting the kibosh on my aspirations of going in the City 2 Bay this year, not because I'm injured or because I wouldn't make the PB, but because of constraints on time and money. I may go past the course on my way into uni to watch the leaders go by. I probably would have time to go in the race, but by the time I've finished, cooled down, had a shower and travelled back into uni, most of the day would be gone. The chief financial officer has also expressed concerns about the cost of entry, although I should be able to find $20 somewhere. I'll think about it.
Here is the Oxford definition of kibosh.
[Origin obscure. (It has been stated to be Yiddish or Anglo-Hebraic: see N. & Q. 9th ser. VII. 10.)]
1. In phr. to put the kibosh on: to dispose of finally, finish off, do for.
1836 DICKENS Sk. Boz, Seven Dials, ‘Hoo-roar’, ejaculates a pot-boy in a parenthesis, ‘put the kye-bosk [sic] on her, Mary’. 1846 Swell's Night Guide 124 Kybosh on, to put the, to turn the tables on any person, to put out of countenance. 1856 Punch XXXI. 139 (To put the cibosh upon). 1891 C. ROBERTS Adrift in America 9 It was attending one of these affairs which finally put the ‘kibosh’ on me. 1896 H. G. WELLS Wheels of Chance xli, ‘I put the kybosh on his little game,’ he remarks. 1924 Chambers's Jrnl. May 296/2 Standofer's fairly put the kybosh on us this time. 1952 J. CLEARY Sundowners iii. 122 Well, that puts the kybosh on it. 1956 H. G. DE LISSER Cup & Lip xxii. 246 Good for you... You have put the kybosh on them. 1971 Times Lit. Suppl. 7 May 531/2 Not only did the First World War liquidate the Edwardian douceur de vivre. It also put the kybosh on the rationalist's faith in progressive social evolution. 1975 Sunday Post (Glasgow) 10 Aug. 7/3 She'd been looking forward to some salmon fishing, but the heatwave's put the kybosh on that.