dipsey

noun4

1. •
   (slang) A deep-sea lead.
2. •
   (dialect, US) A sinker attached to a fishing line.
3. •
   [before a noun] (slang) Deep sea.

   • "Soundin' is a trick, though," said Dan, "when your dipsey lead's all the eye you're like to hev for a week. What d'you make it, Dad?" — 1897
4. •
   (dialect, US) A line having several branches, each with such a sinker, used in deep-sea fishing.