to have partied to hard to the point where you are to sick to continue the party. To sit your ass on the grass refers to having bit off more than you can handle while partying, and being unable to party anymore.
Ex. 1 - Man I had to sit ya ass on the grass the other night you went to hard on the alcohol.
Ex. 2 - I sat your homeboy on the grass the other night, he thought he was tough enough to hang with the big dogs.
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.