flout vs look down one's nose

flout

verb
  • To express contempt for (laws, rules, etc.) by word or action. 

noun
  • The act by which something is flouted; violation of a law. 

  • A mockery or insult. 

look down one's nose

verb
  • To regard as inferior or distasteful; to hold in contempt. 

How often have the words flout and look down one's nose occurred in a corpus of books? (source: Google Ngram Viewer )