Run out of steam
Meaning
To lose all energy, enthusiasm, or impetus to continue an activity.
Origin
The phrase "run out of steam" steams directly from the mighty industrial revolution of the 19th century. Imagine the colossal steam locomotives, ships, and factory machines that powered this era; their immense power depended entirely on constant steam pressure. If the boiler ran low on water or fuel, the engine would literally lose its driving force, grinding to a halt. This striking visual of a powerful machine slowing and stopping due to a lack of steam was swiftly adopted as a compelling metaphor for people or projects losing energy, enthusiasm, or momentum, vividly illustrating the depletion of vital power.
Examples
- After working on the project for twelve hours straight, Sarah finally ran out of steam and had to take a break.
- The political campaign started strong but seemed to run out of steam in the final weeks before the election.