I still read the tweet as 'so sod off', but in a nice way.
The guy he replied to didn't take it that way.....though not entirely sure...
He's a reporter for the Herald, and when someone asked him if Andy had "gone loco" after his tweet, he replied
Martin Williams @Martin1Williams 22h "didn't take it that way. A simple expression of mind. Or is he joshing with us again"