Plugging in is read as connecting to energy or to other people; unplugging, as rest or withdrawal. A plug that will not fit stands for a mismatch between you and a situation.
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.