gnarly vs spot-on

gnarly

adj
  • Excellent; attractive. 

  • Unpleasant, awful, ugly. 

  • Of music or a sound: harsh. 

  • Having or characterized by gnarls; gnarled. 

  • Dangerous; difficult. 

spot-on

adj
  • excellent 

  • correct; accurate; absolutely right 

How often have the words gnarly and spot-on occurred in a corpus of books? (source: Google Ngram Viewer )