Define My Name Is Mud Meaning

My Name Is Mud but call me Alowishes Devander Abercrombie that's long for mud, So I've been told.
Told that by there sons a bitch who lies before me bloated blue and cold, I got my pride, I drink my wine.
I drink only the finest 'sept I haven't earned a dime in several months, or were it years.
The breath on that fat bastard could bring any man to tears.

"We had our words, a common spat
So I kissed him upside the cranium with an aluminum baseball bat
My name is Mud"