chump vs lame duck

chump

noun
  • An incompetent person, a blockhead; a loser. 

  • The thick end, especially of a piece of wood or of a joint of meat. 

  • A gullible person; a sucker; someone easily taken advantage of; someone lacking common sense. 

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 chump and lame duck occurred in a corpus of books? (source: Google Ngram Viewer )