cooze vs tunnel of love

cooze

noun
  • Pussy, vagina. 

  • A woman (often when viewed as an object of sexual desire). 

tunnel of love

noun
  • The vagina. 

  • A carnival dark ride for couples in boats, either relaxing and romantic, or spooky (encouraging the couple to cling to one another). 

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