hatchet job vs slam piece

hatchet job

noun
  • A journalistic or other treatment which portrays its subject in a very unfavorable manner; a work of criticism which aims to destroy a reputation. 

  • An action or a program which imposes deep reductions in expenditure. 

slam piece

noun
  • A journalistic or other treatment which portrays its subject in a highly unfavorable manner. 

  • A sexual partner to whom one has no particular emotional attachment. 

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