brassy vs off-base

brassy

noun
  • Kyphosus vaigiensis, a fish found in southeast Asia. 

adj
  • Unfeeling; pitiless. 

  • Impudent; impudently bold. 

  • Harsh in tone. 

  • Resembling brass. 

off-base

How often have the words brassy and off-base occurred in a corpus of books? (source: Google Ngram Viewer )