The act of completely and utterly unleashing one's insanity upon an enemy, most commonly while wielding either a battle axe or a guitar.
"Tim's roommate broke his favorite CD, so he went completely nutshit on him and chopped him to bits with his axe."
by Adam Crow June 27, 2009
Get the nutshitmug. Darren: Bro why does Caleb have on a G-string?
Dray: I don’t know. He on some NUTSHIT bro get him away from me.
Dray: I don’t know. He on some NUTSHIT bro get him away from me.
by BlackDynamite00 June 11, 2018
Get the Nutshitmug. by WILCOCKS February 2, 2017
Get the you on some nutshitmug.