effort vs twerk

effort

noun
  • The work involved in performing an activity; exertion. 

  • An endeavor. 

  • A force acting on a body in the direction of its motion. 

verb
  • To make an effort. 

twerk

noun
  • A fitful movement similar to a twitch or jerk. 

  • A dance involving sexual movements of the hips and buttocks. 

  • An abrupt call, such as that made by the California quail. 

verb
  • To twitch or jerk. 

  • To move the body in a sexually suggestive twisting or gyrating fashion, especially as a dance. 

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