I have long used the phrase: "Fair to middlin'... like when someone asks "Hey Eric, how are you?" I say: "Fair to middlin', but after a lifetime of using this old faithful of responses I was told that I have been using the wrong words.
I was told: "You're saying that wrong it's middling... when people speak without mumbling, they pronounce that expression "Fair to middlin'. "Middlin'"--or "middling" -- means average or medium; in the middle range."
So... from here on in I will try to say the "g" in the expression... better yet forget it I'm feeling a bit middlin' today!