dunk vs inner tube

dunk

noun
  • The act or instance of dunking, particularly in basketball. 

verb
  • To set down carelessly. 

  • To submerge briefly in a liquid. 

  • To put down on social media [+ on (object)]. 

  • To put the ball directly downward through the hoop while grabbing onto the rim with power. 

inner tube

noun
  • Synonym of swim ring 

  • An inflatable rubber tube inserted into the casing of a pneumatic tyre/tire. 

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