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1) "Throw Upz" or "Throwiez" are a B-Boy or B-Girls Flash Dance. Throwin' Up is an instantaneous response to the urge of wanting to boogie down.
2)Throw Upz are designed to be a Quick display of Skill, Heart, Art & Guts :
That bboy has some clean throw upz.

I saw some bboy throw upz in the mall food court yesterday
by December 24, 2010
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