pigging vs unholy

pigging

adj
  • Damned (used as a mild intensive). 

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

unholy

adj
  • Dreadful, terrible, excessive, or otherwise atrocious. 

  • Not holy; (by extension) evil, impure, or otherwise perverted. 

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