1.) A mythical creature known by a small cult following. This creature/being has been known to move so fast that it can reach such speeds as Mach 7.

2.) The ultimate term of insult. When one has been deemed a Butt Stump, you know you have thoroughly failed at life.
You sir, are what I would call a Butt Stump!
by Steve Reiker October 27, 2005
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