Cách sử dụng
The expression "shake a leg" is used to encourage someone to hurry up or get moving. It can be used in situations where there might be a sense of urgency or time is running out. For example, if you are getting ready to leave for work or school and someone is taking their time, you might say "Come on, shake a leg! We don't want to be late." It's a casual expression and can be used with friends or in informal settings.