DCHP-1 Online
splitting cuff Esp. Nfld 
See quote.
- 1965 On his left hand the splitter wears a "splittin' cuff," a kind of fingerless wool mitten; with this hand he grasps the upper part of the back bone and then runs the blade of his slightly curved, squarish knife longitudinally, first down one side of the vertebra and then back up the other, separating the backbone and the upper ribs from the flesh.
- 1965 On his left hand the splitter wears a "splittin' cuff," a kind of fingerless wool mitten; with this hand he grasps the upper part of the back bone and then runs the blade of his slightly curved, squarish knife longitudinally, first down one side of the vertebra and then back up the other, separating the backbone and the upper ribs from the flesh.