The feeling of discovering a close friend has betrayed you. To include a partner revealing that they cheated on you. (Alternativespelling of GÜgenzilley.)
Joe went out to the bar today, and the Gugenzilley was really hitting him hard.
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.