Phonetic spelling of the military acronym HUA, which stands for "Heard Understood Acknowledged." Originally used by the British in the late 1800's in Afghanistan. More reciently adopted by the United States Army to indicate an affirmative or a pleased response.
1: Sgt: "Y'all got the game plan?"
PFC(s): "Hooah sargeant!"

2: Sgt: "Y'all ready for chow?"
PFC(s): "Hooah sergeant!"
by MaddogS October 1, 2003
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"Private, go get me a cup of coffee"
"Hooah Sergeant"
by RyanSm April 23, 2008
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1: heard understood acknowledged 2:i don't know what you said but i want you to think i was paying attention. 3:yes. 4: i disagree but i'll do it anyway. 5: i want you to think i care. 6: i want to show you i can act motivated. 7: hardcore, tough.

of military origin
that ranger is hooah
by big johnny July 9, 2002
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an army term meaning yes, rodger, i undersand, ok, i agree, or any variation of a positive responce.
q: did you get the tire changed on the vehicle this morning
a: hooah!
by ted6889 August 10, 2008
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slang used by US Army personal. means or refers to anything or anything except "NO". usual used by soldiers when answering a question or letting know that you heard the speaker.
SGT: you tracking?

by tweaker93 November 29, 2007
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Army slang used as a generic response to any question that would otherwise require a yes or no, or used in place of profanity when being given bullshit orders or receiving an ass chewing.
Dumbass NCO: Did you PMCS your Humvee?
Lazy Private: Hooah...

Worthless 1SG or Company Commander at COB formation at 2330 hrs: Formation tomorrow will be at 0315, bring in all of your issued gear and be prepared to take the APFT. Afterwards we will march to the motor pool for safety day activities which will last until 1730. Nobody will be released until POV inspections are done and all counseling statements are finished. After formation all barracks personell will stand at by their rooms for inspection, post housing personell will police call the parking lot, and off post personell will sweep the line at the motor pool.

Soldiers in Ate up Company: Hooah....(grunts and moans heard in the background)
by tripod October 3, 2004
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A word a military tard uses when he is grunting or blindly following orders.
Commander: Soldier I want you to take out that entire town of innocent chilrend.

Soldier: HOOAH!

Commander: WTF is wrong with you are you a retard or something?
by MrHobbes69 August 17, 2014
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