full pelt
advUS, UK /fʊl ˈpɛlt/
Etymology From full + pelt (“act of moving quickly, rush”).
1
Very quickly.
- It's a good day off us anyhow, and they're all going south-west by south full pelt as hard as they can go.1907, H[erbert] G[eorge] Wells, “The Battle of the North Atlantic”, in The War in the Air: […], London: George Bell and Sons, published 1908, →OCLC, § 1, page 146: