jerking vs yank

jerking

noun
  • A motion that jerks; a jerk. 

yank

noun
  • A sudden, vigorous pull (sometimes defined as mass times jerk, or rate of change of force). 

  • A Yankee. 

  • A masturbation session. 

verb
  • To pull (something) with a quick, strong action. 

  • To remove from distribution. 

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