arsehole vs bollock sack

arsehole

noun
  • The anus. 

  • An inconsiderate or mean-spirited person. Less vulgar and intense than fucker or cunt. 

  • A variant of the card game big two. 

bollock sack

noun
  • The scrotum. 

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