The sigbin walks backward with its head between its legs, according to Visayan lore. Dream books read it as a reversal of the normal order and the unease of things going the wrong 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.