belly vs pooch

belly

verb
  • To cause to swell out; to fill. 

  • To swell and become protuberant; to bulge or billow. 

  • To position one’s belly; to move on one’s belly. 

noun
  • The stomach. 

  • The main curved portion of a knife blade. 

  • The abdomen, especially a fat one. 

  • The part of anything which resembles (either closely or abstractly) the human belly in protuberance or in concavity; often, the fundus (innermost part). 

  • The womb. 

  • The hollow part of a curved or bent timber, the convex part of which is the back. 

  • The lower fuselage of an airplane. 

pooch

verb
  • To distend, to swell or extend beyond normal limits; usually used with out. 

noun
  • A bulge, an enlarged part. 

  • A dog of mixed breed; a mongrel. 

  • A dog. 

  • A distended or swelled condition. 

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