Similar to motorboating, but done between someone's ass cheeks. When someone places their mouth between someone's ass cheeks and then shakes their head violently while making motor sounds with their lips.
As coined in Episode 86 of the Wheels Off Liberty podcast by one Jamie Crane.
I've been mudbugging so much that I can't even smell shit anymore!
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 $2million.