boy cunt vs shirt lifter

boy cunt

noun
  • The anus of a man, usually the passive participant in gay sex. 

shirt lifter

noun
  • Synonym of bottom: a homosexual man who is penetrated or prefers to be penetrated during anal sex. 

  • Used other than figuratively or idiomatically: see shirt, lifter. 

How often have the words boy cunt and shirt lifter occurred in a corpus of books? (source: Google Ngram Viewer )