BOB vs douche nozzle

BOB

noun
  • Vibrator (device designed to stimulate a woman's genitals). 

adj
  • Back-of-the-book; denoting those stamps in a catalogue that are not used for the payment of regular postage fees, and are displayed separately in the catalogue after that listing; the division between these two groups varies with the publisher. 

douche nozzle

noun
  • The part of a douche that is inserted into the vagina. 

  • A rude, obnoxious, or contemptible person. 

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