wrap someone around your little finger
US /ræp ˈsʌm.wʌn əˈraʊnd jʊər ˈlɪt.əl ˈfɪŋ.ɡər/
UK /ræp ˈsʌm.wʌn əˈraʊnd jʊər ˈlɪt.əl ˈfɪŋ.ɡər/

1.
人を意のままに操る, 人を手玉に取る
to have complete control over someone and be able to persuade them to do anything you want
:
•
She can wrap him around her little finger; he'll do anything she asks.
彼女は彼を意のままに操ることができる。彼女が頼むことは何でもするだろう。
•
My youngest child always manages to wrap me around her little finger to get what she wants.
私の末っ子はいつも私を意のままに操り、欲しいものを手に入れる。