bivalve vs honey hole

bivalve

noun
  • A pericarp in which the seed case opens or splits into two parts or valves. 

  • Any mollusc belonging to the taxonomic class Bivalvia, characterized by a shell consisting of two hinged sections, such as a scallop, clam, mussel or oyster. 

honey hole

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

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

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

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