We have a winner! Congratulations jws and commiserations ab and the other runners-up - I did think at first that I might have to adjudicate a ten-way tie! I did wonder when I chose the word if anyone would go down the Thatcher route, and I must admit to being surprised that no one picked up on ixion's subtle variation on the same theme.
jws, your prize has a tenuous connection to Thatcher too - the lyricist Yip Harburg who wrote Ding Dong The Witch Is Dead, was also responsible for songs like April In Paris, Paper Moon, Brother Can You Spare A Dime, and this, performed here by the very wonderful Groucho Marx:
http://youtu.be/n4zRe_wvJw8