Where Did It Come From?
Another synonym is derived from Charles Dickens' A Christmas Carol- "Scrooge" the ultimate skinflint:
This seems to me to be the most likely explanation for the word, though there are a couple of other suggestions, including that it is derived from the French expression "tondre un oeuf" (to shave an egg). Which is, I suppose, possible. Oddly, the first literary use of the term "skinflint" doesn't really seem to line up with either of these possibilities. It's found in the 1656 satire The Legend of Captain Jones: "This were but petty hardship, Jones was one/Would Skinne a Flint, and eat him when h’had done."