noun
or knuckle boy
: a mine-car clipper who works at the top of a haulage slope attaching and detaching mine cars to and from cables and coupling trains of cars
noun
or knuckle boy
: a mine-car clipper who works at the top of a haulage slope attaching and detaching mine cars to and from cables and coupling trains of cars
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012