bumshoving vs buttfuck

bumshoving

noun

  • Anal sex. 

  • Giving way of the hips during the drive phase. 

buttfuck

noun

  • An act of anal intercourse. 

verb

  • To perform an act of anal intercourse. 

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