parting shot vs sneer

parting shot

noun
  • An insult or barbed comment issued as the speaker departs or the conversation comes to an end. 

sneer

noun
  • A display of contempt; scorn. 

  • A facial expression where one slightly raises one corner of the upper lip, generally indicating scorn. 

verb
  • To utter with a grimace or contemptuous expression; to say sneeringly. 

  • To raise a corner of the upper lip slightly, especially in scorn 

How often have the words parting shot and sneer occurred in a corpus of books? (source: Google Ngram Viewer )