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Related to give on: give up
To act as though something false is true, typically to dupe someone else. He gave on that he was a clueless new employee in order to gain access to the computer system.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
To pretend something in order to deceive another: The con artist gave on that he was a car salesman, although in fact he knew very little about cars.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.