chutzpah

chutzpah puhekieltä Nearly arrogant courage; utter audacity, effrontery or impudence; supreme self-confidence; exaggerated self-opinion;
22/01/2007, The Times, http://www.timesonline.co.uk/article/0,,641-2560365,00.html Modern Manners

If the service is rotten and the meal a disaster, we should withhold a tip and explain why we are doing so. Few of us have the chutzpah to do this.

But seriously, the ability to just come out and put on a placard that the Jurassic era is temporally contiguous with the Fifth Dynasty of the Old Kingdom of Egypt — well, there’s a word for that, and that word is chutzpah.