an image which is extremely fascinating or horrifying that you see or is envisioned from a verbal description which stays in your mind for a long time or permanently to be recalled later at an inoppurtune time.
Aagh! I just got a brain tattoo of that pot-bellied dude riding a bicycle in only a speedo, a bandana, socks and shoes. I did not need to see his vienna sausage and mini plums.
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.