honey hole vs na-na

honey hole

noun
  • A vagina or vulva, as an object of sexual interest. 

  • A location or situation which yields something of significant value. 

  • A hole in the trunk of a tree, containing the natural honey produced by a colony of bees. 

na-na

noun
  • The vulva. 

How often have the words honey hole and na-na occurred in a corpus of books? (source: Google Ngram Viewer )