Well, ....... actually no. I can't be bothered. You win Dan.

Tony is correct in that "diarrhea of the mouth" and potty mouth are not synonymous.
"diarrhea of the mouth" means verbose (long-winded to us cowboys) with often inane (silly/stupid to cowboys) comments.
Potty mouth is, well, potty mouth.

I'm long-winded - guess that makes me diarrhea fingered. And why is "diarrhea" spelled that way - what's with that?

As for as your call, you can make it yourself.

"diarrhea" spelling as in:
+Wikipedia
+Nat'l Institutes of Health - Diseases
+Medline Encyclopedia
+Medicinenet.com
+Et Al

Another reason why some people constantly advertise is that they want to expand, but cannot afford to pay the going rate.
But if advertising is free, they might just get lucky. But then again...