Can you clarify what you mean by that? You have ads on your site for another site? Another site has ads for your website? Something else?
By "Web Referer", do you mean this?
Or something else?
There's nothing you can do. jQuery can't help. Nor can anything else.
Why does it bother you? Your server can make use of the referer header. Or ignore it. Another site had a link to your site. When you get the request, there MIGHT be a Referer: header telling you which site linked to your site. Use it to bump a count in a database, so that you know where your traffic is coming from. Or ignore it.
If you look at the last section of the Wikipedia article, "Referer Hiding", there are some ways of preventing the browser from sending the header. But they have to be implemented on the site that is linking to yours. There is NOTHING that your site can do to change that.
Many users don't like Referer because of privacy. And so many browsers allow users to shut it off, or users use a plugin to remove it. You could use it to see which of your users don't care much about their privacy! ;)