We've been thru this before-----you know full well what I mean when I use a politically incorrect word. There is no barrier to communication other than you being a self righteous asshole.
You're pretending you can read minds again. It may be your opinion that that someone understands what you are saying when you use a politically incorrect term but the reality is you dont know at all.
Of course there is a barrier to communication. In the example provided there would cease to be any communication.