BOB vs repercussion

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. 

repercussion

noun
  • In a vaginal examination, the act of imparting through the uterine wall with the finger a shock to the foetus, so that it bounds upward, and falls back again against the examining finger. 

  • The subsidence of a tumour or eruption by the action of a repellent. 

  • The act of driving back, or the state of being driven back; reflection; reverberation. 

  • A consequence or ensuing result of some action. 

  • Rapid reiteration of the same sound. 

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