
Lazy jacks (or lazyjacks) are a type of rigging which can be applied to a fore-and-aft rigged sail to assist in sail handling during reefing and furling. They consist of a network of cordage which is rigged to a point on the mast and to a series of points on either side of the boom; these lines form a cradle which helps to guide the sail onto the ...
Found on
http://en.wikipedia.org/wiki/Lazy_jack

Lines running from above the mast to the boom to retain the sail when it is lowered.
Found on
http://www.diy-wood-boat.com/Boating-terms.html

Light lines from the topping lift to the boom, forming a cradle into which the mainsail may be lowered.
Found on
http://www.sailinglinks.com/glossary.htm
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