Paradox of Cliches

At first glance there is no paradox, cliches are merely things that have been overdone to death, so they're no longer used, but that's the problem...

If cliches are overdone, they are no longer used, if they are no longer used they aren't overdone, so if they aren't overdone they aren't cliches!

So something can only be a cliche if it is used forever right? Wrong again, if something was used forever it wouldn't be overdone, it would never be done.

So what exactly is a cliche?

The thing is then calling something a cliche is anachronistic because at the time of the calling of a cliche it would either be no longer used or still in use, this seems confusing but it's one of the many confusing things about society...