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2.
A word commonly used by estheticians on the west coast, namely Seattle. Often confused with dry, witty and smart-ass behavior.
The boy from Texas was so full of smartassedness in his email, that it made the west coast gal scream out loud in laughter.
by ChiTown JOhn September 07, 2011
 
1.
The aptitude of ones ability to be deliver witty or rye comments, taking more of a negative view.
Erika, Do you finally see that smartassedness is a word.

I have really practiced and my smartassedness has really matured, Erika
by Austin P November 28, 2007