Saunders is just dead wrong on this issue.
For one thing, I guess no one informed Saunders who owns factcheck.org. LOL
I use it (the phrase) frequently with these idiot columnists, it’s not profanity, it’s the famous catchphrase from early SNL, the point/counterpoint Weekend Update segment between Dan Aykroyd and Jane Curtin, where Aykroyd would always chime in responding to Curtin with, “Jane, you ignorant slut !”
http://www.hulu.com/watch/2306/saturday-night-live-point-counterpoint-lee-marvin-and-michelle-triola