Definition of lazy jack in English:
A small rope extending vertically from the topping lift to the boom for holding a fore-and-aft sail when it is being taken down.
- Additionally, the lazy jacks prevent the boom and sails from falling all over everyone in the cockpit.
- The fully battened main has lazy jacks which make raising and lowering the sail a simple task.
- With lazy jacks it might make sense to run the main halyard and topping lift aft to the cockpit.