Basically saying that you fucked someones socks off, had sex with them so long and hard that they may passed out, or generally took part in extremely fun and bountiful, not to mention overwhelmingly pleasurable sex.
"Man, you should've seen they way I was fucking my wife last night. As soon as I saw her I told her "I'm gunna roxorz ur soxorz wit teh hawt sexxorz until my balls fall off"
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.