The act of being from the D block of Garcia Hall at NMSU.
Also involves yelling D BLOCK when you are in A-C patios, and as a response to any question or action. This response is unable to be beaten by any other response because of it's pure awesomeness.
Carlos-"D BLOCK!"
Gabe-"Dude be quiet"
Carlos-"Shut up, I'm just D Blocking"
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.