pepper spray vs tomahawk

pepper spray

verb
  • To douse (someone or something) with pepper spray. 

noun
  • A non-lethal chemical agent derived from peppers used in riot control and personal self-defense. 

tomahawk

verb
  • To strike or cut up with a tomahawk. 

  • To perform a tomahawk dunk. 

  • To girdle or incise the trees around (an area of land) so as to claim ownership of it. 

noun
  • A field hockey shot style that involves a player turning their hockey stick upside-down and swinging it so that its inside edge will come into contact with the ball. 

  • An ax used by Native American warriors. 

  • A dunk performed with one's arm behind one's head. 

  • A geometric construction consisting of a semicircle and two line segments that serves as a tool for trisecting an angle; so called from its resemblance to the American Indian axe. 

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