BOB vs flange

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. 

flange

noun
  • The vulva. 

  • The projecting edge of a rigid or semi-rigid component. 

  • The electronic sound distortion produced by a flanger. 

  • An ability in a role-playing game which is not commonly available, overpowered or arbitrarily imposed by the referees. 

  • The collective noun for a group of baboons. 

  • An external or internal rib or rim, used either to add strength or to hold something in place. 

verb
  • To be bent into a flange. 

  • To make a flange on; to furnish with a flange; to bend (esp. sheet metal) in the form of a flange. 

  • To mix two copies of together, one delayed by a very short, slowly varying time. 

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