I watched a movie recently in which one of the characters states that his mother doesn't have a maiden name. It really struck me as something odd (I am not a native English speaker), I would have thought the answer would be that his mother's maiden name is the one she's bearing. However my Irish boyfriend claims one only "obtains" a maiden name once she gets married. In other words, is maiden name an equivalent of birth name for women?
*EDIT: I think what I'd really like to know is how you answer the question from the movie - what is her maiden name, knowing she's not married?