fribble vs slummock

fribble

verb
  • To behave in a frivolous way. 

  • To waste or fritter. 

  • To totter. 

noun
  • A trifler. 

  • A trifling action. 

  • A frivolous, contemptible fellow; a fop. 

adj
  • Of little or no importance, frivolous. 

slummock

verb
  • To behave lazily or indolently 

  • To behave awkwardly or clumsily 

noun
  • A slovenly person 

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