beaver eater vs cunning linguistics

beaver eater

noun
  • Someone who performs cunnilingus. 

  • A Canadian person, especially a French Canadian. 

  • Used other than figuratively or idiomatically: see beaver, eater. 

cunning linguistics

noun
  • Synonym of cunnilingus. 

How often have the words beaver eater and cunning linguistics occurred in a corpus of books? (source: Google Ngram Viewer )