Chutzpah. It’s a word I use a lot, after a decade living in New York. A Jewish/Yiddish word that many Australians can’t pronounce or spell.
The best definition I ever heard came from that redoubtable Israeli prime minister, Golda Meir. Her example of chutzpah was the Jewish kid who murdered both his parents and pleaded for mercy on the grounds that he was an orphan.