A fishbone is the bare structure left after the meal, and tradition reads it as what remains of something used up — or as a small thing stuck in the throat, a word not said.
When this appeared in your dream, what were you feeling?
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.