A word primarily used by the United States Marine Corps and the U.S. Navy Seabees. It can be used in a variety of ways. It is usually pronounced "oorah".
1) Typically used in a show of motivation or lifted morale.
The first powerful and energetic "hoorah" was stated by Laterrian. He is black. This term is used to pump up the confidence and to give a boost to the men chanting it. Usually used by men, but some women who are found to be homosexual, will steal the catchphrase from the guys. Usually chanted from a single guy, and myriad men chant it back in a louder fashion.