See Also:

all out (iou)



all out adverbial phr. & adjective. Also all-out. ME.
[from ALL adverb + OUT adverb.]
adverb. Entirely, completely, quite. Now arch. & dial. ME.
adverb & (with hyphen) adjective. To the fullest extent of someone or something's strength, power, resources, etc.; at full speed. L19.
E. F. Norton Irvine..was willing..to 'go all out', as he put it, in an utmost effort to reach the top. M. L. King The time has come for an all-out world war against poverty.