what possessed him/her/you/them

phrase

used to say that someone did something stupid
She was acting like a fool. I don't know what possessed her.

Examples of what possessed him/her/you/them in a Sentence

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The relatively large, cheap-feeling, white and blue plastic routers are passable, but what possessed them to put an X on top to house the LED? Simon Hill, WIRED, 13 Sep. 2024

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“What possessed him/her/you/them.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/what%20possessed%20him%2Fher%2Fyou%2Fthem. Accessed 30 Jul. 2026.

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