be (one's) baby

(redirected from is your baby)

be (one's) baby

To be something that one is closely involved with, such as a project or problem. That initiative is Cheryl's baby, so all questions can be directed to her.
See also: baby

be someone's baby

If you say that something is someone's baby, you mean that they have created it or are responsible for it. He's open to ideas for the movie, but it's his baby. There's no doubt Fashion Week is her baby.
See also: baby

be someone's baby

(of a project) be instigated and developed by one particular person; be someone's creation or special concern. informal
See also: baby

be somebody’s ˈbaby

(informal) be something that somebody has created, is dealing with, etc: Mary’s the lawyer, so the legal problem’s her baby.
See also: baby