enjoyment vs slow burn

enjoyment

noun
  • An activity that gives pleasure. 

  • The exercise of a legal right. 

  • The condition of enjoying anything. 

  • An enjoyable state of mind. 

slow burn

noun
  • A gradually increasing feeling of anger or frustration. 

  • A romantic story (especially a work of fan fiction) in which the central relationship develops slowly. 

adj
  • Developing slowly over the course of the story. 

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