1927, in reference to a personality test using ink blots, developed by Swiss psychiatrist Hermann Rorschach (1885-1922). The town so named on the Swiss side of Lake Constance is from an early form of German Röhr "reeds" + Schachen "lakeside."
Examples from the Web for rorschach
He was a Rorschach test, vaulted into the presidency by positive perceptions and unrealistic expectations.Sorry, Michele Bachmann. We Are Ready for a Female President. And It’s Partially Because of You.|Eleanor Clift|February 21, 2014|DAILY BEAST
“Barack has become a kind of human Rorschach test,” his friend Cassandra Butts told Rolling Stone.
Looking at the map, of course, offers a political Rorschach test.
Mitt Romney is a Rorschach test, with voters seeing what they want to see.
At the moment, Mitt Romney is a Rorschach test, with voters seeing what they want to see.
While the steamboat lay at the wharf at Rorschach, two stout porters came on board, and shouldered his baggage to take it ashore.Saunterings|Charles Dudley Warner
It was in this easy chit-chat they sat down to their coffee in the little inn at Rorschach.
Call it a Rorschach blot—but even for that, the months of seeing it had made it impossible to see it at all.The Trial of Callista Blake|Edgar Pangborn
Then turning to the boatmen, she bade them "give way" with a will, and pull their best for Rorschach.
On the Rorschach they had done a little better, at least in volume of response.Freudian Slip|Franklin Abel