Note:  Do not rely on this information. It is very old.


Gaff, a kind of boom used to extend the upper edge of the mizen, its foremost edge being furnished with two cheeks to embrace the after-part of the mast. A gaff topsail is a light, three- or four-sided sail on the mizen topmast, its head in the latter case extended by a small yard and its foot extending along the length of the gaff.

“Walk as on the borders of the invisible world.”
–Robert Hawker Poor Man's Morning and Evening Portions, July 17