approval vs blowjob

approval

noun
  • An expression of favorable acceptance and encouragement; a compliment that also condones. 

  • Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item. 

  • An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements. 

blowjob

noun
  • Excessive praise. 

  • An act of fellatio, or sucking a penis or other phallic object (such as a dildo). Stimulation of somebody's penis or testicles with a person's lips, tongue or mouth with the purpose of giving the receiver sexual pleasure. It may or may not result in orgasm. 

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