execrable vs plug-ugly

execrable

adj
  • Hateful. 

  • Of the poorest quality. 

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. 

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