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Related to pinning: Ear pinning
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informal The most important or powerful person within an enterprise or organization. Used especially in reference to organized crime. The notorious kingpin controls the illegal drug trade across the entire Eastern Seaboard. He started out selling cheap local newspapers when he was a teen. Now he's the kingpin of a huge global media empire.


informal The legs. She was a little unsteady on her pins as she stood up. My pins started trembling under the weight of the barbell.
See also: pin
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.


1. n. someone’s leg. (Usually plural.) Stand up on your pins and speak your mind.
2. n. an important criminal leader. (From kingpin.) The mob’s getting careless. The cops think they caught the pin this time.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.