lead on

lead on idiom
Entice someone into proceeding, mislead; also, deceive someone, especially pretending romantic interest. For example, He's leading her on to reveal more of her family history, or She's just leading him on; she has a serious boyfriend at home. [Late 1500s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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