A squirtbox is a cardboard box that is taped shut with a hole cut into it that one would use to masturbate into. This could have a picture of someone's face/genitals taped to it to add to the affect.
"Hey Jim, where's your squirtbox? I need to crank one out!"
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.