Stignint 

stupid and ignant (noun)
the act of being dumb or ignorant

The disorderly conduct student was sent to the principle's office for being stignint in class.

Stignint by Connnor12 May 30, 2015

stignant

showing extreme activity.
derived from stagnant meaning to cease to move, combined with Stig, the driver on Top Gear who drives hard and fast.
also includes

stignation - a state of extreme activity.

your life is so stignant, i can't keep up.

stignant by helzbelz28 November 22, 2011

Stignent

To undertake the action of sleeping, whether voluntarily or accidently.

Im going upstairs to my bed to Stignent.

Stignent by Ham333 May 13, 2006