I'm in a band with a lawyer, who thinks that 'Easeman" comes from "easment," a term that describes the right of way a public or private road, or a railroad has over another's property. He believes it's a metaphor for a man who had right of way to another man's woman. With said woman might come corn bread, chicken, dumplings, biscuits, gravy, and all manner of good things.
Growing up in Woodhaven, NY, we had our backyard cut short by a tiny road, four yards long, to our next door neighbor's garage. That structure was ancient. If it had ever collapsed, we were then permitted to extend our fence, and cut off his access across our property. But so long as the garage was functional, we couldn't do it.
Every time there ws a big storm, my father would look out the back window, hoping to see that ricety old pile fall to pieces. Sadly for him, it never happened while he lived.
That was one of his experiences of having the blues, I guess. He'd got them mean, old, no-garage-collapsing blues.