like theres no tomorrow

Like theres no tomorrow, such as living like theres no tomorrow, is a way to explain that you want to do something eagerly, quickly and without pause. For instance if someone tells you to live like theres no tomorrow it means to not stop what you want to do, continue to live your life at a fast pace because if you are going to die soon, you should hurry up and do what you plan to do and not stop to question it.