English Pronunciation Audio (General Australian):(file) Noun full blast (uncountable) (idiomatic) Maximum capacity or effort 1944 January and February, “Light Railways in Derbyshire”, in Railway Magazine, page 25:At Fallgate a short branch leading to a quarry is disused, but some gravel pits are working at full blast; [...]. Synonyms full throttle full tilt Translations maximum capacity or effort Finnish: täysi teho (usually used in adessive), täysillä (fi) (on full blast) French: à toute vapeur (fr) Italian: piena potenza f Portuguese: a todo vapor (pt) References John Camden Hotten (1873) The Slang DictionaryWikiwand - on Seamless Wikipedia browsing. On steroids.