If you dream of lock jaw, then this denotes anger, frustration, stress, and resentment, that you’ve put a lock on joy. This dream could be suggesting that it is time to be more mindful about your communication patterns.... Strangest Dream Explanations
The jaw or chin are symbols of willpower. To dream you have a large jaw indicates that your determination has perhaps devolved into stubbornness. On the contrary, if the chin is abnormally small, the unconscious is reminding you of the weakness of your character.... The Big Dictionary of Dreams
The jaw is very involved in preparing food for digestion, and in this way it ultimately connects to the principle of self-care and nurturance. However, a tight jaw strongly relates to unexpressed anger and tension.
If your jaw or the jaw of a person in your dream is featured, there may be issues of anger in such a dream. Consider whose jaw is prominent.
If it is a character in the dream, then that person may represent a part of your personality that is causing you to either hold back anger or otherwise reflect issues of unexpressed rage.... Complete Dictionary of Dreams
Any dream concerning your own jaws, such as lockjaw, pain, injury, or whatever is a warning that you will have to cope with some malicious gossip which could damage your standing among those whose esteem you value.
Don’t rely on passive resistance, combat it actively.
A dream featuring the jaws of others signifies financial gain through outside help.
To dream that you see, or are in the grip of, the jaws of a monster portends a misunderstanding which could lead to a broken friendship.
Don’t be too quick to judge.... The Complete Guide to Interpreting Your Dreams
Some dream interpreters believe that jaws signify the gates to the underworld. Jaws in a dream can also indicate a bad meal, spiritual indigestion, or a bad mix of food that produces an old-fashioned “nightmare.”... Dream Symbols in The Dream Encyclopedia
Dreams of lock jaw represent anger or stress clamping your jaw shut, or that you are not trusting your true expression. Your subconscious mind is giving you permission to ask for what you want or need.... Strangest Dream Explanations
The mouth represents the devouring, demanding aspects of yourself; it can also signify your need to communicate about something that is upsetting you.
If the mouth is open, this may represent your receptive side, as in mouth-watering. On the other hand, perhaps too much has been said and it is time to close your mouth—in other words shut up. A dream of your mouth being buttoned or sewed up can again suggest regret over what has been said or done.
If you dream that you are chewing, it might suggest that you are mulling over, or considering, something.
If you are pulling something out of your mouth, perhaps you need to clear the air by expressing your feelings, or do you have a nasty taste in the mouth?
To see your own tongue in your dream signifies self-expression. Have you said too much or do you need to say more? If you rip someone’s tongue out in a dream, this means that you are extremely upset by what someone has said in waking life but have been unable to express your anger. To dream of your own jaw in your dream represents your stubbornness, determination and forcefulness.
If your jaws are tight, this could suggest unexpressed anger and other powerful feelings that you are holding back.
If lips appear in your dream, this is associated with sensuality, sex, love and romance, as well as communication, as in ‘read my lips’.... The Element Encyclopedia