Reversing a decision or one’s beliefs on something, usually over an emotional issue. For Example: “I had a change of heart and decided not to break up with her.”

Two things that have very little in common. Chalk and cheese have little in common with each other. For Example: if you say “those two people are like chalk and cheese,” you’re saying that they are not alike.

To share your beliefs or opinion in a conversation. For Example: “If you want my two cent’s worth, I think he would make a terrible President.”

Someone who is wealthy and smug. For Example: An investment banker who spends thousands of dollars on dinner every night could be referred to as a “Wall Street fat cat.”

Any product, business or idea that generates a steady stream of cash flow. For Example: “Those vending machines are a cash cow.