Top Definition
The extreme form of being a badass. Only an elite few will ever reach this form of coolness.
He has the most badassnessicity of life! Fosh!
by Rachel Harper February 04, 2007
not a word ... a way of life
learn it. love it. live it.
you don't by any means have badassnessicity yet
by Jenn "the lady" July 22, 2007
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