Similar to the cold shoulder, this is when your friends, family or guardians ignore the blatant proverbial or literal butt raping that you are dealing with.
(The meaning comes from the blatant ignoring of former Penn State assistant coach Jerry Sandusky banging children)
Did you see Bill in there? He was getting a reaming but I didn't feel obligated to help so I gave him the ole' Sandusky Shoulder.
This old, creepy guy was going to town on me the other night, Jim walks in, and sure as hell he gives me the Sandusky Shoulder.
Next time Sarah gets herself in that situation its going to be the Sandusky Shoulder for her.