Why do Marines say 'Booyah'?

Not Booyah! - Its Ooh-rah. It started as a battle cry and way to encourage motivation in Marines. Started by United States Marine Corps Amphibious Reconnaissance Battalion. Its meant to affirm commands, understanding of an order and acknowledgement. read more

Booyah is used in order to abruptly express great joy, usually brought on by victory or some other sort of accomplishment. We don't believe in Booyah in the Marines. We leave Booyah to idiots in college fraternities. read more

The Marines actually say"Ooh-Rah. There is no"H" sound. Wikipedia states: Urah or Ooh-rah is a spirited cry common to UnitedStates Marines since the mid-20th century. read more

The United States Army, Marines and Navy SEALs each have their own variation of a term that sounds a lot alike. Used as affirmations of sorts, the Army’s “Hooah”, the Marines “Oorah”, and the Navy SEALs’ “Hooyah” may be whispered, called in cadence, or shouted out. read more