dogging vs jigging

dogging

noun
  • The act of one who dogs or harasses. 

  • The practice of having sexual intercourse in public places, especially parks, deliberately taking the chance of being watched. 

jigging

noun
  • The act of dancing a jig. 

  • The act of using a jig; the act of separating ore with a jigger, or wire-bottomed sieve, which is moved up and down in water. 

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