bush pig vs tub of guts

bush pig

noun
  • A fat and very ugly woman. 

  • An African pig of the genus Potamochoerus; Potamochoerus porcus or Potamochoerus larvatus. 

tub of guts

noun
  • A fat person 

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