horror vs joy killer

horror

noun
  • Something horrible; that which excites horror. 

  • An intense distressing emotion of fear or repugnance. 

  • A genre of fiction designed to evoke a feeling of fear and suspense. 

  • An individual work in this genre. 

  • Delirium tremens. 

  • A nasty or ill-behaved person; a rascal or terror. 

  • Intense dislike or aversion; an abhorrence. 

  • An intense anxiety or a nervous depression; often the horrors. 

joy killer

noun
  • killjoy (Someone or something that hinders fun.) 

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