It appears to be a fake name
Referring to Margaret Thatcher, possibly the least popular Prime Minister in recent history; due largely to her economic decisions.

en.wikipedia.org/wiki/Margaret_Thatcher

It'll let you look her up, or I'll just end up shouting in incoherent rage. Suffice it to say, I think she was the true and ugly face of unrestricted capitalism; and the less well-off of this nation are still paying the price of some of her policies - Ineffective unions, neglected public transport.

Of course, she wasn't all bad. You just couldn't help but hate "the milk snatcher".
(The Incredible Sulk Finally remembered his password on, Fri 20 Feb 2009, 23:17, Reply)