anus vs arse

anus

noun
  • An impolite, unpopular, or unintelligent person. 

  • The lower orifice of the alimentary canal, through which feces and flatus are ejected. 

arse

noun
  • A stupid, pompous, arrogant, mean or despicable person. 

  • A person; the self; (reflexively) oneself or one's person, chiefly their body; (by extension) one's personal safety, or figuratively one's job, prospects, etc. 

  • Used in similes to express something bad or unpleasant. 

verb
  • To be silly, act stupid or mess around. 

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