hell-for-leather

Etymology
Earliest reference is from 1889 in "The Gadsbys" by Rudyard Kipling, referring to the effect on the leather of a saddle (or perhaps a crop) of riding a horse as fast as possible.

Adverb

 * 1) As fast as possible; recklessly fast.

Translations

 * Hungarian: mint a szélvész, szélvészként, szélvészgyorsan,, mint a villám, észvesztő/eszeveszett sebességgel
 * Norwegian:
 * Bokmål: fort som faen
 * Russian:
 * Spanish: