Scrap metal stands for what has been discarded or outgrown, read as leftovers of old plans. Tradition also sees it as raw material waiting to be reused in a new way.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.