BOB vs intimation

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. 

intimation

noun
  • The thing intimated. 

  • Announcement; declaration. 

  • The act of intimating. 

  • A hint; an obscure or indirect suggestion or notice; a remote or ambiguous reference. 

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