>>* "used" is an expression people pre-owned to pre-own in their regular speech, but it's undergone a politically-correctional program.
>
>I couldn't understand what you mean with "but it's undergone a politically-correctional program"...

It's an American expression. First, nothing happens by itself. For an expression to become politically correct, it has to be incorrect first. Then, things don't become correct out of the blue - they need to be corrected. Since there's no national system for most of the things, they create programs, which apply to ALL participating facilities (service may not be available in your area; void where prohibited). So to make a non-PC expression become PC, there must be a politically-correctional program, where they fix those words.

At least I don't have a better explanation for the process. I've never seen it done. I only know that one day a word is OK, next day it's gone and replaced with a corrected version. I wonder what they do to them in there. Some serious brainwashing, I guess.