doggy style vs whelpie

doggy style

noun
  • The position assumed for doggy style intercourse. 

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

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

whelpie

noun
  • A small whelp, especially a little cub or puppy; a cur. 

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