It appears this question addresses what I am asking for, but has no definitive answer other than "fix it yourself."
You are approaching this the wrong way: new users will always use the
stackoverflow tag to refer to either the website or the error, so no matter what you do that tag is doomed.
I have a better idea: rename the website to http://www.wafflesoverflow.com; this will solve the tag problem. The domain is not currently registered.