1. Cash Cow

Welcome to English in a Minute, where we teach you all about idioms in American English. Lets pretend you are in a major U. S. city. You are listening to an American English conversation, and you hear this: Hey, Bob. Ever since you opened your coffee shop, you have been very busy. Is the business going well and making money Yeah I cant believe it. Its going really well. In fact, my coffee shop has become a real cash cow for me. How does a cow produce cash Everyone knows cows make milk. But in American English, a cash cow is a product or service that makes a lot of money for a business. This common phrase is used in casual and business conversations. And when you use it, everyone will understand what you are saying. And thats English in a Minute