jackal vs lap dog

jackal

noun
  • A person who behaves in an opportunistic way; especially a base collaborator. 

  • A person who performs menial/routine tasks, a dogsbody. 

  • A player who steals the ball at the tackle. 

  • A jack (the playing card). 

  • Any of certain wild canids of the genera Lupulella and Canis, native to the tropical Old World and smaller than a wolf. 

verb
  • To perform menial or routine tasks 

lap dog

noun
  • A person who behaves in a servile manner, such as a sycophantic employee or a fawning lover. 

  • A small toy dog, kept as household pet, whose light weight and companionable temperament make it both suited and disposed to spend time resting in the comfort of its master's lap; a dog bred to behave in this manner. 

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