{adv. phr.}, {informal} With all your strength, power, or determination; to the best of your ability; without holding back. - Usually used in the phrase "go all out". * /We went all out to win the game./ * /John went all out to finish the job and was very tired afterwards./ Compare: ALL THE WAY 2, FULL TILT, GO THE WHOLE HOG, GO TO ANY LENGTH, LEAVE A STONE UNTURNED, WITH MIGHT AND MAIN.
ALL OUT
Meaning of ALL OUT in English
Slang English vocab. Английский сленговый словарь. 2012