BOB vs pulp

BOB

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. 

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

pulp

adj
  • Of or pertaining to pulp magazines; in the style of a pulp magazine or the material printed within such a publication. 

verb
  • To deprive of pulp; to separate the pulp from. 

  • To beat to a pulp. 

  • To make or be made into pulp. 

noun
  • A magazine or book containing lurid subject matter and characteristically printed on rough, unfinished paper. 

  • A mass of chemically processed wood fibres (cellulose). 

  • The underside of a human fingertip; a finger pad. 

  • The very soft tissue in the spleen. 

  • A mixture of wood, cellulose and/or rags and water ground up to make paper. 

  • The soft center of a tooth. 

  • A suspension of mineral particles, typically achieved by some form of agitation. 

  • The soft center of a fruit. 

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