Said/sung to express that the current situation or what someone else has just said is of an interesting/cool nature, simulating a sound made from an electric guitar.
Originates from a common guitar lick played in films and TV shows when something critical to the story happens, such as a revered character entering a bar scene with is posse etc.
Guy = "Ok guys, its time teach this mofo a lesson."
Guy2 = "Baw chika bow wow"
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.