have someone in the palm of your hand
US /hæv ˈsʌm.wʌn ɪn ðə pɑːm əv jʊər hænd/
UK /hæv ˈsʌm.wʌn ɪn ðə pɑːm əv jʊər hænd/
1.
to have complete control over someone
:
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The charismatic leader seemed to have the crowd in the palm of his hand.
•
After years of working together, she finally felt she had her boss in the palm of her hand.