Kibosh Considered

“Reforming the Lords has given way to pondering whether the coalition can or will survive. My bet is that it will, but the Lib Dems have threatened to kibosh the government’s plans to redraw constituency boundaries and this would disadvantage the Conservatives at the next election.”
 — Wait, we can use “kibosh” as a stand-alone verb now? Or is that just Britspeak? Anyway, it’s a funny word, “kibosh.” Say it out loud. See, it feels weird! Also? No one is quite sure whence it came. Kibosh!