shithead vs slummock

shithead

noun
  • A stupid or contemptible person. 

  • A card game, the aim of which is to lose one's cards. 

slummock

noun
  • A slovenly person 

verb
  • To behave awkwardly or clumsily 

  • To behave lazily or indolently 

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