A lightly used insult referring to someone who is being a noob and you are calling them a scrub.
Person 1: "Hey guys! In Super Smash Bros, throw off the ledge to down smash spike is a true combo!"
Person 2: "Your such a nubscrub. That's impossible."
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.