Cobbler vs slummock

Cobbler

noun
  • A person from Northamptonshire (traditionally a centre for shoemaking) 

slummock

noun
  • A slovenly person 

verb
  • To behave awkwardly or clumsily 

  • To behave lazily or indolently 

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