jellybrain vs momo

jellybrain

noun
  • A muddled thinker; a stupid person. 

momo

noun
  • A moron. 

  • A type of dumpling from Nepal, Ladakh or Tibet made with a simple flour and water dough and filled with meat, vegetables or cheese. 

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