Cách sử dụng
The expression "couldn't care less" is used when you want to show that you really don't care about something at all. For example, if someone starts talking to you about a topic that you have no interest in, you can say "I couldn't care less" to express that you really don't care about it. It's a way of emphasizing that you have absolutely no interest or concern in the topic being discussed. This phrase is often used sarcastically or dismissively, and can be considered rude in certain situations, so it's important to use it carefully.