cleaver vs woodchipper

cleaver

noun
  • A squarish, heavy knife used by butchers for hacking through bones, etc. 

  • A type of clave, or rhythm stick, a concussive musical instrument used in traditional Bahamian music. 

  • The act of eliminating someone or something, especially when done by someone with a history of other eliminations; a dismissal, rejection, or removal. 

woodchipper

noun
  • A machine for reducing wood to woodchips 

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