drub vs rake someone over the coals

drub

verb
  • To criticize harshly; to excoriate. 

  • To beat (someone or something) with a stick. 

  • To defeat someone soundly; to annihilate or crush. 

  • To forcefully teach something. 

noun
  • Carbonaceous shale; small coal; slate, dross, or rubbish in coal. 

rake someone over the coals

verb
  • To berate someone at length, usually from a position of authority or moral authority. 

How often have the words drub and rake someone over the coals occurred in a corpus of books? (source: Google Ngram Viewer )