hoppy vs viper

hoppy

adj
  • Characterised by a hopping motion. 

  • Having a taste of hops; heavily flavoured with hops. 

viper

noun
  • A dangerous, treacherous, or malignant person. 

  • A person who smokes marijuana. 

  • A venomous snake in the family Viperidae. 

  • Any venomous snake. 

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