Cách sử dụng
The phrase "know which side your bread is buttered" means to understand what is good for you and to be grateful for it. It comes from the idea that if someone knows which side of their bread is buttered, they know which side is the best or most beneficial. It can be used in situations where someone is benefiting from someone else's kindness or generosity, and they need to recognize and appreciate it. For example, you might say to someone who seems ungrateful for a kind gesture," Hey, know which side your bread is buttered. You should be grateful for what they did for you."