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To catch and arrest someone. Often used in passive constructions. We'll be able to nab the perpetrator as soon as we have an eyewitness to the crime. I heard the serial killer was finally nabbed last night.
A thief. Used after another noun to indicate what the thief stole or some characteristic about the thief. Police are now on the lookout for the lawn-ornament nabber after a third house was hit last night. The pig nabber turned out to be a neighbor of the farmer, a mere boy of 15 who claims he was just having a bit of fun.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
1. tv. to arrest someone. (see also nabbed.) I knew they would nab him sooner or later.
2. and nabber n. a police officer; a cop. There’s a nabber at the door who wants to talk to you.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.