go to bat against

go to bat against someone

Fig. to aid someone against someone else. I would be happy to go to bat against Dan. We refused to go to bat against one of our friends.
See also: bat
References in periodicals archive ?
It is typically the nurses who go to bat against the doctors to say, "This med routine is not working; let's come up with something new.
Not only that, when you go to bat against Escobar, he's gunning for you.