Definition of "hooah" [hooah]

• The official yell of the US Army. (interjection)

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• "Their response at the word hooah, what that means and the way -- the inflection in their voice and the way they said hooah."
• "He is a financial planner and former Army Ranger who speaks with a polished demeanor but prefers to greet people with the Army cheer "hooah" -- or, if they're Marines, "oorah" -- unafraid to shout it across a crowded restaurant."
• "They need to learn to tell the White House and the NSC when something cannot be done, and not just respond with a "hooah" and "we can do it!""