bluehair vs fuddy-duddy

bluehair

noun
  • An elderly person, especially a woman or one viewed as senile, old-fashioned, or out-of-touch. 

  • A young or naive supporter of social-justice causes. 

fuddy-duddy

noun
  • An old-fashioned, persnickety or ineffective person. 

adj
  • Old-fashioned and persnickety or ineffective. 

How often have the words bluehair and fuddy-duddy occurred in a corpus of books? (source: Google Ngram Viewer )