例句1: Do you think the economy is heading up or down? The smart money seems to think that business will get better so maybe it's time to put some money into the stock market.
例句2: In the past, interest from my bank account was a good source of income to have after I retire. But interest rates are so low these days that I have to let those smart money people who handle mutual funds take care of my money.
例句3: The other day we ran out of gas sixty miles from home. I had forgotten my wallet. But we were lucky - my wife remembered she had her mad money, so we were able to buy gas to get back home.
例句4: Last Saturday, my daughter was invited to a dinner party and planned to buy a cake on her way. In the bakery, she found out that she'd forgotten her purse. Fortunately, she had her mad money in her pocket to pay for the cake, so it turned out all right.