similar to "put a fire under it," "let's move/get going," or "get the lead out"...meaning to hurry. as mentioned above, it is usually used by parents, dads in particular.
"stop dawdling or you'll be late for school. now quit lollygagging and let's get a move on!"
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.