beav vs twat

beav

noun
  • The pubic hair near a vulva or a vulva itself. 

twat

noun
  • The vagina or vulva. 

  • A contemptible and stupid person, idiot. 

verb
  • To hit, slap. 

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