boot boy vs charva

boot boy

noun
  • One of a gang of violent hooligans who usually wear short-cropped hair and bovver boots. 

  • A boy who cleans boots and shoes. 

  • A boy who cares for a footballer's boots. 

charva

noun
  • Unruly youth; disobedient child or teenager. 

  • Friend; mate. 

  • A chav. 

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