bush league vs chump

bush league

noun
  • A low-ranking or inferior level among groups, professions, organizations, etc. 

  • A professional sports association at the lower levels of minor league organization. 

adj
  • Of inferior quality. 

  • Amateurish, unprofessional, unpolished, juvenile. 

chump

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

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

  • An incompetent person, a blockhead; a loser. 

How often have the words bush league and chump occurred in a corpus of books? (source: Google Ngram Viewer )