Top Definition
someone who slowly begins to lose their mind due to utter boredom, isolation, a creative block, cabin fever or all of the above, like the dude Jack Torrance in The Shining.
I hope this snow storm lets up or I am gonna be "Going Jack" soon.
by poser1212 January 27, 2011

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×