backhanded compliment vs brickbat

backhanded compliment

noun
  • An insult disguised as a compliment; a compliment which can be interpreted as an insult. 

brickbat

noun
  • A criticism or uncomplimentary remark. 

  • A piece of brick used as a weapon, especially if thrown, or placed in something like a sock and used as a club. 

verb
  • To assail with criticism. 

  • To attack by throwing brickbats. 

How often have the words backhanded compliment and brickbat occurred in a corpus of books? (source: Google Ngram Viewer )