The stringlike cord (similar to the open end of a PEbag of the 80's) that is used to keep the arsehole closed. A device such as this is fitted to people who have lost control over the anal sphincter due to excesive buggery
Peter, we have had to fit you with an "anal drawstring" so that you dont shit yourself all the time.
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 $2million.