When you/someone inserts a form of liquid (Usually beer or cider) into their anus and the farts the substance back out to form a hose like action from their anus
Ahh it was so funny. Jonathon put cider up his shitter then did a cider fart in Ferdinand-Edgar-Thomas-Rynn Pring's face!
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2 million.