Definition of "jigger-mast" []

• A small mast stepped on the extreme aft of small craft for setting a jigger. (noun)

The Century Dictionary (Public Domain)

• "Mayo was assigned to the jigger-mast, and went aloft to shake out the topsail."
• "This craft was rigged with two masts, carrying upon the foremast a large standing lug and a jib, and a small lug upon the jigger-mast."
• "These latter, that is to say the jigger-mast and the small lug, we stretched over the stern-sheets of the longboat in the same way as we had dealt with the gig, leading the yoke lines forward on top of the sail, so that the steering arrangements might not be interfered with."