pigging vs shocking

pigging

adj
  • Damned (used as a mild intensive). 

noun
  • The use of a pig (the device) to clean a pipeline. 

shocking

adj
  • Extremely bad. 

  • Inspiring shock; startling. 

  • Unusually obscene or lewd. 

noun
  • The application of an electric shock. 

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