made of money
Having a lot of money. The phrase is often used in the negative as part of a denial to a request for one to lend money to or purchase something for someone. I know you want the new phone, but the answer is no. I'm not made of money.
made of money
Very rich, as in Afford a limousine? Do you think I'm made of money? This hyperbolic expression uses made of in the sense of "composed of," a usage dating from about 1200.