I usually just say "it was 180'ed" (in duplication, because they did something stupid, at the sitout table, ...) Almost always "in duplication", though.
It does present a confusion with the people who put the board the wrong way around to play (so South has the North cards, and is looking at the North pocket), but in context, there's no confusion (except of course, when I get called to one of those tables, I make sure to mention:
- that it should be scored on the slip/device according to the board (i.e. if South plays the hand, it's scored as 3♠N), and
- put it back the way you had it, and *only then* turn it around.
I usually stick around if I can to make sure that the second happens :-)
Long live the Republic-k. -- Major General J. Golding Frederick (tSCoSI)