When one's level of insobriety becomes such that he or she believes that they are in their own "special place". In such a situation, they are said to be visiting "Wizconsin". In this state, people feel as if they are in a Wiz Khalifa video, and they embrace their insobriety (see "Taylor Gang" video by Wiz Khalifa). This is the place where someone goes when they are "Wizsane" or when they believe that they are a "WIZard".
Dude, he brought so much greenery that you could say he booked us a first class ticket to Wizconsin.