Chutzpah is a Yiddish word meaning gall, brazen nerve, effrontery, sheer guts plus arrogance; it's Yiddish and, as Leo Rosten writes, "no other word and no other language" can do it justice.
The example below is better than 1,000 words.
The Essence of Chutzpah
a young man would leave his office building at lunch time, and as he passed the
pretzel stand, he would leave her a quarter, but never take a pretzel.
This went on for more than 3 years.
The two of them never spoke. One day, as the young man passed the old lady's stand and left his quarter as usual, the pretzel lady spoke to him.
Without blinking an eye, she said: "They're 35 cents now."