I’ve never heard this and I’m a Missisippian who has had leases/or owned hunting property in Mississippi, Louisiana, Tennessee, Alabama and a very large 15,000 acre lease NW of Austin near Burnet Texas...in my 54 years
and I have never heard the term NIGGERHEAD.....ever till today
There is a rotating rope winch on drill rigs that used to be called niggerheads. The term is cathead now. Neither makes much sense, but I did hear it used by old drillers even black ones.
Niggerhead is an old term to describe a large round rock sticking up from the surface of a logging road, used by loggers and log truck drivers. I think there was something that rigging was tied off to and it was also called a niggerhead.
I’ve heard it used for other things too, but it’s been so many years that I don’t remember what it stood for.
I do recall that Brazilian nuts were once called Nigger toes.