What does the idiom penny pincher mean?

"Penny pincher" is an idiom that describes someone who is extremely frugal and unwilling to spend money, even on necessary things. It implies that they are excessively tight-fisted and obsessed with saving small amounts of money, often at the expense of their own comfort or convenience.

Here are some synonyms for penny pincher:

* Scrooge

* Miser

* Tightwad

* Cheapskate

The term is generally considered negative and can be offensive. It suggests that the person is overly obsessed with money and lacks generosity.