I don't understand the point of this thread. Then again, I don't understand the point of "yo mama" jokes in general. (For the most part) their sole purpose is to insult people. I don't think insulting people is wise...when there isn't any good reason to do so (which I may unfortunately be guilty of, but even then I hope I never went too far).
Frink, what do you have against your mother that people make crude jokes around her?