When you're going down on a girl and realize she has something extra left over down there- tiny bits of toilet paper, clumps of discharge, cottage cheese from her yeast infection, etc.
Dude it was so nasty, I was going down on Kristy last night and ate some of her kitty chow!
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 $2million.