Phrase used to tell someone they aren't funny (implying that they need to leave. Alone. Right now.)
Usually used in reaction to a bad joke or stupid comment.
Humerous witticism used in order to deflect criticism from the fact that you have just let rip with a stench that would choke a monkey to death. Generally used as a witty riposte by the educated whilst in polite society.
Charming old Colonel - "good God what was that noise?"
Wilde - "I was just calling a taxi for Brown my good man"
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.