Another Maronite resented that, and killed a Druse; and they were all at it, hell-for-leather.
He wants to be a wicked, hell-for-leather fellow, but he hasn't got the stomach for it!
When Peggy's father died, Colling was going it hell-for-leather—just about as fast as they're made.
Turn in, Gadsby, and I'll bring Bingle back—ahem—'hell-for-leather.'
And there she was, galloping into that field, hell-for-leather, unwrapping her long-tailed whip as she came.
In other words, life's like fox-hunting; choose your line, choose it slowly and carefully, then follow it 'hell-for-leather.'
[1889+; origin unknown; perhaps related to British dialect phrases go hell for ladder, hell falladerly, hell faleero, and remaining mysterious even if so, although the leather would then be a very probable case of folk etymology with a vague sense of the leather involved in riding tack]