Performing more than onetask at a time in a manner that doesn't diminish proficiency or efficacy of the combined tasks.
Mike was simultasking by building quality time with his daughter and maintaining his fitness when he used his daughter as additional weight for stair climbing.
Driving, talking on the phone, and applying makeup can be multi-tasked but not simultasked because one activity diminishes capability in the other activity when performed at the same time.
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.