- The definition of hell-for-leather is done with all of one's energy, or at full speed.
An example of something done hell-for-leather is a final sprint to win a major marathon.
- Hell-for-leather is defined as done in a very quick way, or in a way that exerts all of one's energy.
An example of hell-for-leather used as an adverb is in the phrase "hell for leather running," which means running at one's highest speed.
- with all of one's energy, will, etc.; with wholehearted or reckless determination
- at full speed or with great speed: a hell-for-leather chase
- as fast as possible; recklessly fast
- He rode hell-for-leather to catch up with the stagecoach.