In dark times, this ment someone with mudshit on there face.
The only way to travel was by horse... so they have to do there business too, right !!!

Sometimes mud and horse shit would mixed and becomes "mudshit".

So some lucky bastard would get a horseshoe full in the face.
Bam, Mudda hell was born.

And also it's a classier way to say {Mother Fucker}.

When you eat dirt for the first time and leave your family to build a shack in the woods