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Definition of crank
crank - adj. (used of boats) inclined to heel over easily under sail; noun a hand tool consisting of a rotating shaft with parallel handle; an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant; a whimsically eccentric person; a bad-tempered person; verb bend into the shape of a crank; fasten with a crank; rotate with a crank; start by cranking; travel along a zigzag path.
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