An especially extravagant, revealing, or otherwise over-the-top outfit one wears for the purpose of skating in, or working at, a roller derby bout.
"Did you see Demolicious's amazing boutfit tonight? She just cut her hair short and is wearing a vintage velvet hat and a flapper dress covered in pink fringe!"
by Anita Kill April 19, 2009
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The uniform that a roller derby girl wears while playing a bout.

Originated by Sophia Low-Rent of the Morristown Madams Roller Derby
We have a game tonight, be there at 6 in your boutfit.
by May Chete July 22, 2008
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