footle about vs slummock

footle about

verb
  • To pass time doing unimportant things; to mess around. 

slummock

verb
  • To behave lazily or indolently 

  • To behave awkwardly or clumsily 

noun
  • A slovenly person 

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