When someone you have had sex with in the past shows up or are friends with someone you want to have sex with in the future, they are a poontang boomerang.
"Dude! I went to a party with my new girl , and her skank friend showed up that I was down and dirty with the night before! That girl is a poontangboomerang !"
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.