The action associated when calling someone a double wanker. The gesture is expressed by having each arm at either side of hips with hands in a wanker motion. Can sometimes be confused with a monkey chant.
Police: What are you doing there on camera?
Gav the Chav: It's clearly the double wanker sign!
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.