Someone who does not believe in regular bathing, or, a person whose body odor develops before they can bathe again. Also a good insult for somebody you dislike that is in either of the former categories above.
Hey, look! It's the Ignorant Dude who Smells Like He Took a Bath in Dead Fetus Juice!
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.