And What if I Won't?

As many of you know, language and grammar are pet peeves of mine. I think that the English language is wonderful and should be treated and used with the respect and dignity it deserves. Several times during today's historic events in Washington I heard commentators use the phrase "if you will". I have no idea exactly what they mean by that? Will I agree with them? Will I allow them to speak? Will I listen? Will I go to the kitchen for a glass of water? What??? And, in our house at least, the response becomes, "And what if I won't?" If I say that I won't (won't whatever it is that they want me to "will", will the TV screen suddenly go quiet and dark with the commentator drawn and quartered or will he or she continue on with what they were about to say? Since they are going to say it anyway, the "if you will" is unnecessary and perhaps condescending. Or is it an affectation like "um', "like", etc? Come on, people -- let's honor the language we have and use it correctly without fillers like "if you will".