slummock vs yob

slummock

noun
  • A slovenly person 

verb
  • To behave awkwardly or clumsily 

  • To behave lazily or indolently 

yob

noun
  • A person who engages in antisocial behaviour or drunkenness. 

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