A fork of Rural Dictionary
A quantity of money, usually two quarters. Not to be confused with the rapper.
That toy was on sale for 50 cents
It's an slang very common in some kinds of situations.
You are about too ask a gorgeous woman out, you're not so sure about that, because you think "Oh, I can not as her out, my wallet is too small for my 50's". It means that you are thinking that she is too good for you.