lap dog vs trickster

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. 

trickster

noun
  • An impish or playful person. 

  • One who plays tricks or pranks on others. 

  • A fraud (person who performs a trick for the purpose of unlawful gain). 

  • Any of numerous figures featuring in various mythologies and folk traditions, who use guile and secret knowledge to challenge authority and play tricks and pranks on others; any similar figure in literature. 

  • One who performs tricks (parts of a magician' act or entertaining difficult physical actions). 

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