Solid lump of stinky toilet jelly. Made by adding jelly crystals to the toilet water after you taking a dump. Needs time to set before achieving unflushable status.
Dude, that fucker left a dunnycake in my parent's toilet, I'm going to have to break it up before I can flush it.
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.