Definition of: parbuckle

(pär′buk′əl) noun
1. A purchase made by looping a rope in the middle to aid in rolling casks, etc., up or down an incline, or in furling a sail by rolling the yards.
2. A sling made by passing both ends of a rope through its bight.
—v.t. ·led, ·ling To hoist or lower by means of a parbuckle. [Earlier parbunkle; origin unknown]