could be used in a variety of ways expressing anger, happiness, etc...
Or it could simply mean a man or woman who really likes butt sex.
mad- "why the fuck did you do that for you anal slut?"
happy- "FUCK YEAH YOU ANAL SLUTS, I JUST FUCKED YOUR MOMS IN THE ASS"
simply butt sex fun- "wow you just had sex with her ass for 2 hours then she strapon fucked you in the ass later? you anal sluts!"
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.