double-plus-good vs smashing

double-plus-good

adj

  • Excellent, very good. 

smashing

adj

  • Wonderful, very good or impressive. 

  • Serving to smash (something). 

noun

  • Gerund: The action of the verb to smash. 

How often have the words double-plus-good and smashing occurred in a corpus of books? (source: Google Ngram Viewer )