A psychological warfare tactic in 10th Planet Jiu Jitsu when you wear see through spandex on days you are practicing certain aspects of the rubber guard. During practice your opponent is forced to look at your butt hole over and over again and is rendered mentally broken by the time everyone is ready for sparring.
"I dropped a Dirty Chai Doughnut on him right before we rolled and it wrecked his mental game."
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.