a crime committed by or in collusion with a person or persons closely associated with the victim: The robbery seemed an inside job, because there was no evidence of forced entry.
Origin of inside job
First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
informal a crime committed with the assistance of someone associated with the victim, such as a person employed on the premises burgled
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012