A natural succession of blue alert and red alert. Brown alert is so serious, that it is on the verge of involuntary defecating into your pants.
(Red Dwarf: Back in the red Part 1) Cat: "Red alert? Let's go all the way to brown alert." Kryten: "There is no such thing as brown alert, sir!" Cat: "You won't be saying that in a minute!"
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.