hit piece vs lampoon

hit piece

noun
  • A published article or post aiming to sway public opinion by presenting false or biased information in a way that appears objective and truthful. 

lampoon

noun
  • A written attack or other work ridiculing a person, group, or institution. 

verb
  • To satirize or poke fun at. 

How often have the words hit piece and lampoon occurred in a corpus of books? (source: Google Ngram Viewer )