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A word use to show excitement, or just plainold beastly. The word id made from the sentence Mad Beast Yo. So it was put together so make Mad Beasttro.
Mom: were going to skatepark
Steve: dude that mad beasttro
by Steve Cusk May 13, 2008
2 0

Words related to beasttro

awsome beast beastin beastly beasts