The phrase “running on fumes” is an idiomatic expression that means to continue functioning or operating with very little energy, resources, or motivation left. It often refers to a situation where someone is pushing through despite being exhausted, depleted, or at the end of their capacity.
The origin of the phrase comes from the idea of a vehicle running on the last remnants of fuel in its tank—when a car is low on gas, it may still run for a short distance on the fumes that are left in the tank, but it is not sustainable for long.
In a broader context, it can apply to both physical and emotional states. For example, a person might say they are “running on fumes” if they have been working long hours without sufficient rest or if they are emotionally drained but still trying to maintain their responsibilities. The expression can also be used in organizational contexts, such as a business that is operating with minimal resources or in a state of crisis.
Overall, it conveys a sense of urgency and the need for replenishment, whether that be rest, resources, or support.