anaconda vs pizzle

anaconda

noun
  • A large penis. 

  • The green anaconda; Eunectes murinus. 

  • Any of various large nonvenomous snakes of the genus Eunectes, found mainly in northern South America. 

name
  • A particular variety of stud poker. 

pizzle

noun
  • The penis of an animal. 

  • A baton made from the penis of an ox, once used to beat men and animals. 

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