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1.
Primarily used as an adjective to describe anything that is a fail but noun and verb forms are also acceptable in some cases.
Adjective: I was being so fassett and derped around instead of studying for the physics test.

Noun: All these fassetts should not be in AP.

Verb: We hung out but kinda just fassetted around because we were to lazy to really do anything.
by sassyquach November 07, 2011