Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Q: What is the etymology of shithole? Did it originate from A) the orifice through which excrement is passed, or B) the hole in the ground intended for the disposal of such excrement? (This is a serious question for professional research. You don't want to know the details.).
A: 
The OED's earliest citation for shithole is from the seventeenth century, and it's given as 'coarse slang' for 'the rectum or anus'. The earliest citation for shithole meaning 'a toilet; a latrine' is only from 1947.