a fool and his money are soon parted
Foolish people make purchases without consideration; it is easy to sell something to someone foolish. As soon as Greg won the big lottery jackpot, he turned around and spent it all at the casino. A fool and his money are soon parted.
fool and his money are soon parted, a
A silly or stupid person readily wastes money. For example, Albert is known for giving waiters enormous tips-a fool and his money are soon parted. This proverbial expression has been cited again and again since the mid-1500s.