Hooah? What is the meaning, you have heard it, this my generalization of the word. Whats your interpretation or list?

"HOOAH"
(who-a) .adj. (slang used by soldiers, primarily airborne/ rangers) referring to or meaning anything and everything except “NO”

So, where did the term originate? The simple answer is that nobody knows, although there are dozens of theories. Heck, nobody can even agree on the correct spelling of this widely used military "word."

"No matter how one might spell the word -- with or without a hyphen, a U instead of two Os, and so on -- the word is still an expression of high morale, strength and confidence. And, when powered by an overwhelmingly proud, and usually loud, tone of voice, hooah seems to stomp out any possibility of being bound by the written word. "

Here is my take on the word "HOOAH" FROM MY TAKE IN the U.S. Army

1. What to say when at a loss for words.( ya-know what I mean)
2. Good copy, solid copy, roger, good, great, message received, understood.
3. Glad to meet you, welcome.
4. I don't know the answer but I’ll check on it. I haven't the guest idea.
5. I’m listening.
6. l'm not listening.
7. That’s enough of you dribble--sit down.
8. Stop sniveling.
9. Oh % it you’ve got to be kidding.
10. Yes!
11. Thank you.
12. Go "to the next slide.
13. You've taken the correct action.
14. I don’t know what that means, but I'm too embarrassed to ask for clarification.
15. Amen.
16. good morning/night.
17. Airborne-lets Jump!
18. Screw you!
19. Totally cool.
20. Were gonna march all night/day.
21. This field problem sucks!
22. Another MRE!
23. Fantastic!
24. Endex!
25. F-ing-A.
26. You don't know what the!@@xx@@ you're talking about but I’ll humor you anyway!
27. Eat crap and die!
28. SQUARED AWAY!
29. What a Retard/Stupid!
30.___________etc.etc.etc.etc.etc

http://usmilitary.about.com/od/jointservices/a/hooah.htm

http://usmilitary.about.com/od/militaryhumor/a/hooahdef.htm