be (one's) baby

(redirected from be their baby)

be (one's) baby

1. To be a project or goal that one has initiated and is very devoted to realizing. That initiative is Cheryl's baby, so you know she's going to do everything she can to make it successful.
2. To be one's cherished possession. That car is Mike's baby. If it gets a scratch, he'll be inconsolable.
See also: baby
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

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
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

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
Farlex Partner Idioms Dictionary © Farlex 2017

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
Farlex Partner Idioms Dictionary © Farlex 2017
See also: