The dog-headed psoglav of Balkan lore is read as savagery wearing a half-human form. Tradition takes it as a fear of the brutal side of people, or of instincts slipping free of conscience.
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.