Turd worm in my book has always been the fish doc, centipede, etc either split shotted or on a c-rig.
If anyone is wondering I invented the Ned Rig back in 1981. NED = Nuttin' Eats Dat (rig).......it was my secret weapon til Dave spilled the beans on me and my rig and now everyone and their brother is throwing it or running my namesake rig through the slander mud on fishing forums.