bean flicking vs jerk off

bean flicking

noun
  • Manually stimulating one's clitoris; female masturbation. 

jerk off

noun
  • An act of masturbation. 

  • A stunt in which the performer is suddenly pulled off a horse, etc. by means of a cable. 

  • An annoying person. 

verb
  • To deceive. 

  • To masturbate, usually a male. 

  • To do nothing; to waste time. 

How often have the words bean flicking and jerk off occurred in a corpus of books? (source: Google Ngram Viewer )