A mocking response to someone that says something over the top in a manner of acting tough.
Jim: I drank like a whole case last night.
Rich: OORAH
by mjb1218 March 20, 2008
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A word the U.S. Military uses to cheer on.
"OORAH!! Let's win this war!!"
by 5iNcoGNiTo June 13, 2004
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