skinflint
One who is excessively stingy or cautious with money; a tightwad; a miser.
You know, he is quite a different sort from the Public Prosecutor and our other provincial skinflints--fellows who shiver in their shoes before they will spend a single kopeck.
Where it comes from
From the phrase skin a flint (“go to extreme lengths for the sake of gain or economy”), from the brittleness and hardness of flint which makes it almost impossible to remove just its skin without shattering it.
Adapted from the Wiktionary entry skinflint (CC BY-SA 4.0).