Birthed from the word 'flexable' this verb is commonly used amongst morons that believe adding 'ative' to the end of something makes them appear more intelligent.
This word is also used by those who go on camping trips and have too much time on their hands.
Ouch! My legs sure do hurt from this hike, I wish my muscles were as flexative as your mom's vagina.
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.