defame vs do a hatchet job on

defame

verb
  • To charge; to accuse (someone) of an offence. 

  • To harm or diminish the reputation of; to disparage. 

  • To disgrace; to bring into disrepute. 

do a hatchet job on

How often have the words defame and do a hatchet job on occurred in a corpus of books? (source: Google Ngram Viewer )