putty in your hands

putty in (one's) hands

Easy to control or bend to one's wishes. (Putty is a very malleable material.) Oh, come on, Julia is putty in our hands—we can definitely get her to help us with this prank.
See also: hand, putty

putty in your hands

If someone is putty in your hands, they will do anything you ask them to do. Simon proved to be putty in his hands. I was completely in awe of him — I was putty in his hands. Note: You can also just say that someone is putty. Sometimes he'd do something like bring her a box of chocolates and she would be putty for a week. Note: Putty is a thick paste that is used to fix sheets of glass into window frames.
See also: hand, putty