Top Definition
A military school that combines the challenges of Ranger, Airborne, Air Assault, Sere, and Sapper. It is an all-in-one school for the extremely Hooah.
I heard that Thompson (aka BLT) was the only person to ever graduate from RAASS. Gosh, I have a man-crush on him.
by Philthy-Phil September 20, 2008

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