piggy vs suckling pig

piggy

noun
  • A pig (the animal). 

  • A toe. 

  • A pig, a greedy person. 

  • A member of the police. 

  • A guinea pig. 

adj
  • slovenly, dirty 

  • greedy 

suckling pig

noun
  • An unweaned pig, especially one whose carcass is roasted whole on a spit. 

  • The flesh of such a pig cooked and served as a food item. 

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