The term "caravanned" is similar to the meaning of words such as hammered or the less colloquial term: intoxicated. The phrase means to be completely incapable of normal thinking due to excessive consumption of alcoholic beverages.
Friend 1: "How did you spend your study leave before your exams?"
Friend 2: "Aww mate I got absolutely fucking caravanned like every weekend, it was so fucking good I tell ya!"
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.