When someone gets so convinced of an idea that they eventually realize is bullshit, but then can't tell anyone because they spent so much time telling everyone around you how great it was.
He used to tell us about dinosaurs still being alive all the time, motherf#$ker was so safemooned on that shit, never admited he was wrong.
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.