fink vs slummock

fink

noun
  • A contemptible person. 

  • An informer. 

  • A strikebreaker. 

  • Any of several birds in the family Ploceidae native to southern Africa. 

verb
  • To betray a trust; to inform on. 

slummock

noun
  • A slovenly person 

verb
  • To behave awkwardly or clumsily 

  • To behave lazily or indolently 

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