Dream about biting off tongue is a harbinger for your being and self. There is something that you are not expressing to each other. You need to let go of some grudge. Your dream is an evidence for insight. You do not have a solid foundation needed for success.
Biting off tongue dream is an indication for self-expression and communication. You are trying to escape from your own reality. You are trying hard to fit in with others. The dream is about your anxiety about a work related issue. You will rise above a difficult situation through your own willpower and perseverance.
If you dreamt about biting off tongue:
Work from home today if you can. If this is not possible, add a houseplant and some extra pictures to your desk at work. You will find that the security of your own personal environment is much more conducive to getting your work done.