Idiomatic expression that is often used to encourage someone to hurry up or take action quickly, lest they miss an opportunity or face negative consequences. It implies a sense of urgency and the need to act promptly. It has been used in various contexts, including sports, business, and everyday life, to motivate people to act.
The phrase has a rhyming structure, which makes it catchy and easy to remember, thereby enhancing its impact. The meaning can vary depending on the context in which it is used: in physical training it can refer to the concept of losing muscle mass if you fail to continue your exercise; in business it may mean someone else will take advantage of an opportunity if you do not; in everyday language it could simply be a way to tell someone to hurry up.