Pwntacular is used for something that goes beyond pwn - it is used for something, usually in video games, that is so extraordinary, that it deserves this word.
"Oh my god! We beat those guys ten times in a row...without losing any health! Pwntacular!"
"I killed that loud mouthseventeen times in a row...with a plasma pistol. Pwntacular."
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.