a euphemism originating from Meg & Dia's song "Roses" used when indicating the need to defecate
I spiked Matt's coffee with a laxative because he was being a douchebag, and shortly after, he needed to use the jonh, announcing politely, "BRB, guys. I need to parachute the boys back down."
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.