Used to describe the act done by a man who stacks two girls in a threesome. He starts by going high then low. He fucks the one on top (usually the prettiest goes on top) then the one on the bottom.
When Charlie Sheen has a threesome he stacks and fucks the girls (probably sluts) by *going high then low*.
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.