Stucco is a smooth skin laid over rough masonry, so dream books read it as the finished surface you show the world. Cracked or flaking stucco is taken as a façade starting to slip and the plainer wall beneath asking to be seen.
Where in your waking life have you met something like this lately?
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.