shitpot vs slop bucket

shitpot

noun

  • A chamber pot or toilet. 

  • Term of abuse. 

slop bucket

noun

  • A bucket used for urination and defecation: a chamber pot. 

  • A receptacle used to hold liquid waste. 

  • A pail used to hold food waste for disposal, e.g. by feeding to pigs. 

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