fanny about vs slummock

fanny about

verb
  • To waste time or fool around; to engage in activity which produces little or no accomplishment. 

  • To wander about or prowl around. 

slummock

verb
  • To behave lazily or indolently 

  • To behave awkwardly or clumsily 

noun
  • A slovenly person 

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