full blast

noun

full blast

noun

1

Idiomatic Maximum capacity or effort

At Fallgate a short branch leading to a quarry is disused, but some gravel pits are working at full blast; [...].1944 January and February, “Light Railways in Derbyshire”, in Railway Magazine, page 25:

Synonyms: full throttle, full tilt

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.