twist someone around your little finger

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

To gain complete control or dominance over someone; to make someone do whatever one wishes. The spoiled little brat has completely twisted his parents around his little finger. Everyone jealously accused her of twisting the boss around her finger.
See also: around, finger, twist
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

twist someone around your little finger

or

wrap someone around your little finger

If you can twist someone around your little finger or wrap them around your little finger, you can make them do anything you want them to. Anna may not be the brightest person in the world, but she knew exactly how to twist him around her little finger. A child who is spoilt is able to wrap her parents around her little finger. Note: People sometimes use wind instead of twist or wrap, and round instead of around. I didn't think there was a man in the world you were afraid of, Christabel, or one you couldn't wind round your finger.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

twist (or wind or wrap) someone around your little finger

have the ability to make someone do whatever you want.
Farlex Partner Idioms Dictionary © Farlex 2017
See also:
References in periodicals archive ?
Just because you're able to twist someone around your little finger doesn't mean you should do it.