Blanket term that magically makes issues dealing with so called "left wing" or "liberal" politics go away without the hassle of actually intelligently arguing the point. This attitude is based upon the deliberate misconception that PC is unwritten law that everyone must obey which, thus, infringes on their "freedom of speech". Political correctness is, of course, only a suggested terminology for referring to your fellow man in a respectful manner. Personally, I don't believe in PC: the idea is sound but the execution is lacking. Still, some people insist that it is "ultra-liberal mind control". Typically, those people are the main reason we have PC.