bungholing vs buttfuck

bungholing

noun

  • anal sex 

  • ruining, screwing-over 

adj

  • buggering 

buttfuck

noun

  • An act of anal intercourse. 

verb

  • To perform an act of anal intercourse. 

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