To assign or take responsibility for something knowing it will either be not done or totally fucked up.

When you eat dirt for the first time and leave your family to build a shack in the woods

a stonership is a special friendship that two people have together that get along like a house on fire whilst stoned. You two want get stoned together at the same time and want to do exactly the same thing together whilst stoned. You both want to mong out together when you're in the 'mong' frame of stoned, you both want to go on totally awsome adventures together when in the 'i love you' frame of stoned, you both want to dance and run and sing and LALALA whilst in the 'high-per' frame of stoned, and so on. This stonership will last a life time.