ball sack vs stinkpot

ball sack

noun
  • An objectionable person (especially a man). 

  • The scrotum. 

stinkpot

noun
  • An annoying, bad or undesirable person. 

  • The common musk turtle, a species of turtle from southeastern Canada, Sternotherus odoratus. 

  • The southern giant petrel, Macronectes giganteus. 

  • A motorboat. 

  • A stinkball. 

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