A golfer gravely afflicted by the "s" word of golf--the shanks (i.e., hitting the ball off the hosel of the club, resulting in shots that go pretty much dead right with relatively little distance).
derived from the word shank, word meaning to hit a golf ball to the side of the courseopposite the golfer's stance.
Shankopotomus defines a golfer with a propensity for this error. Someone who is a large shanker. Double extra huge shanker. A shanker extraordinaire. Frank.