I think "chink funk" is a form of "chipmunk." Some rodents can make a very musical chirping sound.

I was in Glacier National Park once, and a rodent was doing that. A woman came up and said to her friend, "I don't want to leave till I figure out what bird is making that sound." I pointed to the rodent and showed her what is was that was doing the singing.

My unabridged dictionary doesn't have a nipwick hen. I doubt if there is such a thing.

I think that if you have been singing it straight and you like it, then you should deep-six these foolish words, put in some legitimate words, and keep on singing it. Folk process once again...