"‘Politically Correct’ was originally a phrase on the Leninist left to denote someone who steadfastly toed the party line. Then it evolved into ‘PC’, an ironic phrase among wised up leftists to denote someone whose line-toeing fervour was too much to bear. Only in connection with the PC debate itself did the phrase get picked up by people who had no fidelity to radicalism at all, but who relished the nasty syllables for their twist of irony."