a figure of speech in which a similarity between two things is highlighted by using a word to refer to something that it does not literally denote — as when Shakespeare wrote, "All the world's a stage, And all the men and women merely players." Shakespeare is not saying the world is really a stage and all people are actors, but there are similarities he wants us to recognize.
Enough love might have been wrung out of me, metaphorically speaking, to drown anybody in; and yet there would have remained enough within me, and all over me, to pervade my entire existence.
Chapters 31-33 (63% in)
There are no more uses of "metaphor" in David Copperfield.