play on

play on idiom
Also, play upon. Take advantage of or make use of for a desired effect, as in These health care ads are meant to play on our fears. This idiom uses play in the sense of “performing on an instrument.” Shakespeare used it in Hamlet (3:2): “You would play upon me; you would seem to know my stops.” [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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