A Jehovah's Stiffness is a completely unwanted erection that appears at the worst of all times and once it appears, it absolutely refuses to go away for a VERY long time.
For example getting a Jehovah's Stiffness on the bus or train just before your stop and you have to stand up and walk away but you know you can't is really annoying
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.