cream puff vs lame duck

cream puff

noun
  • A weak or ineffectual person. 

  • An old motor vehicle in especially good condition. 

  • A light, hollow pastry typically filled with cream or custard. 

  • A weak hit. 

lame duck

noun
  • A person or thing that is helpless, inefficient, or disabled. 

  • An elected official who has lost the recent election or is not eligible for reelection and is marking time until leaving office. 

How often have the words cream puff and lame duck occurred in a corpus of books? (source: Google Ngram Viewer )