A FratTat is when you put roofies and a young lady's drink, have sex with her and before she awakens from her roofie induced slumber, draw all over her face with a magic marker.
I'm not sure if I had a good time but I did wake up with a frattat so how bad could it have been?
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.