hell-bent for leather

hell-bent for leather idiom
Moving recklessly fast, as in Out the door she went, hell-bent for leather. The use of hell-bent in the sense of “recklessly determined” dates from the first half of the 1800s. Leather alludes to a horse's saddle and to riding on horseback; this colloquial expression may be an American version of the earlier British army jargon hell for leather, first recorded in 1889.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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