During sexual intercourse, this is when the man is thrusting at such a high rate of speed, that his hips look like he is on a ten speed road cycle, going downhill, with no brakes, on cobblestone.
"Man y'all sure were loud last night! Especially Karen!"
" yea sorry bout that, I was cobblestoning her...she loved it"
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.