doggy style vs lap dog

doggy style

noun
  • The position assumed for doggy style intercourse. 

adv
  • In a position whereby one partner is on all fours and the other partner is penetrating from behind. 

adj
  • With one partner on all fours and the other penetrating from behind. 

lap dog

noun
  • 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. 

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

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