lazy jack

noun

Definition of lazy jack

  1. 1 :  a device that compensates for expansion and contraction (as in a pipe line) consisting of two linked bell cranks pivoted at the vertices of their complementary angles

  2. 2 :  an often forked line reaching from the masthead or the topping lift on each side of a fore-and-aft sail to about the middle of the boom to confine the sail when it is lowered —usually used in plural

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a person who is a bore or nuisance

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