An email, text message or other form of non verbal communication that conveys the desire to have sexual relations to a friend that you are interested in, or will be, cutting off ties with soon, as a sort of "Hail Mary" on the friendship. It's further implied that no reply is needed if the answer is no. Surefire way to end friendships, or make them that much better.
John: Hey, you still friends with that girl, Jenny?
Mark: (laughs) Nah, I dropped the FriendEnder on her. Haven't heard from her since.
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.