The phrase "in good shape" means that something is in a healthy, sound or proper condition. It can be used to describe an object, person or situation that appears well-maintained and functioning correctly. For example, if someone says they feel "in good shape," it means they are physically fit and healthy. If an item is said to be in "good shape" it implies that it is clean, intact and properly working order. In summary, the phrase "in good shape" indicates a state of being well-preserved or functioning correctly.