beast of prey vs meat-eater

beast of prey

noun
  • A predatory person, savagely cruel and ruthless in their treatment of others. 

  • A carnivorous animal that hunts for its food, especially one that preys on vertebrates. 

meat-eater

noun
  • A corrupt police officer who actively seeks out opportunities to receive bribes. 

How often have the words beast of prey and meat-eater occurred in a corpus of books? (source: Google Ngram Viewer )