hell-bent-for-leather

Adverb

hell-bent for leather (not comparable)

1. (Behaving) determinedly recklessly, in a manner that lacks restraint.
   • [...] his Supply Officer was hell bent for leather to torpedo his tour as the Commanding Officer and wanted explanations, or at least reassurances.2003, Edward Landers, Smooth, →ISBN, page 510
2. Synonym of hell-for-leather (“very fast”).
   • “Gosh!” said Marking. “Where the hell did the Japs get that? [...Was that] a Jap plane? God damn, it was fast.” And I agreed, “It was hell-bent for leather some place.”2009, Yay Panlilio, The Crucible: An Autobiography by Colonel Yay, Filipina American Guerrilla, Rutgers University Press, →ISBN

   Synonyms:

   hell-for-leather

3. Synonym of hell-bent (“(recklessly) determined”).
   • It had been quite some piece of road from an eastern region of Arizona to SOD, but Jethro was hell-bent for leather. His desire for a meeting with Zelda Klemp had taken him over. He'd been driving since late the previous night ...2000, Angus Wynn, Mojave Fringe, →ISBN, page 95

   Synonyms:

   hell-bent