plug-ugly vs shocking

plug-ugly

adj
  • Very ugly. 

noun
  • An ugly person. 

  • A member of an American nativist street gang that operated in the west side of Baltimore, Maryland, from 1854 to 1865. 

shocking

adj
  • Extremely bad. 

  • Inspiring shock; startling. 

  • Unusually obscene or lewd. 

noun
  • The application of an electric shock. 

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