munchkin vs youngster

munchkin

noun
  • A child. 

  • A person of very short stature. 

  • A player who mainly concentrates on increasing their character's power and capabilities. 

  • Synonym of donut hole (“ball-shaped pastry”) (genericization of the Dunkin trademark "Munchkin") 

youngster

noun
  • A young person. 

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