schlump vs slummock

schlump

verb
  • To move in a heavy, lazy or slovenly way. 

noun
  • Someone who is lazy, slovenly, or dull-looking. 

slummock

verb
  • To behave lazily or indolently 

  • To behave awkwardly or clumsily 

noun
  • A slovenly person 

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