gut vs rib cage

gut

noun
  • The alimentary canal, especially the intestine. 

  • A narrow passage of water. 

  • A class that is not demanding or challenging. 

  • The intestines of an animal used to make strings of a tennis racket or violin, etc. 

  • The abdomen of a person, especially one that is enlarged 

  • A person's emotional, visceral self. 

  • The sac of silk taken from a silkworm when ready to spin its cocoon, for the purpose of drawing it out into a thread. When dry, it is exceedingly strong, and is used as the snood of a fishing line. 

verb
  • To dishearten; to crush (the spirits of). 

  • To eviscerate. 

  • To remove or destroy the most important parts of. 

adj
  • Instinctive. 

  • Made of gut. 

rib cage

noun
  • The enclosed area created by and within the ribs. 

  • A part of the skeleton within the thoracic area consisting of ribs, sternum and thoracic vertebrae. 

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