twist (someone) around (someone's) little finger

Translations
обвести (кого-то) вокруг пальца
She can twist him around her little finger.
Она может обвести его вокруг пальца.
Definitions
To have complete control or influence over someone, so that they do whatever you want, often without them realizing it.
Words
finger

noun
палец
twist

verb
крутить
little

adjective
маленький
around

adverb
вокруг