BOB vs slit

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. 

slit

noun
  • The opening of the vagina. 

  • A narrow cut or opening; a slot. 

  • A woman, usually a sexually loose woman; a prostitute. 

verb
  • To split into strips by lengthwise cuts. 

  • To cut a narrow opening. 

  • To cut; to sever; to divide. 

adj
  • Having a cut narrow opening 

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