1. the time by which something must be finished, submitted, etc. 2. (formerly) a boundary around a military prison beyond which a prisoner could not venture without risk of being shot by the guards.
While it's important to talk with your doctor about the cause of your slurred speech, slurred speech caused by anxiety is not dangerous. It's not a sign that you have something else coming, or that your brain will somehow be inefficient for handling life tasks in the future.
It can be a sign of problems with a nervous system disorder like a brain tumor or a stroke. People who have cerebral palsy or Guillain-BarrÃ© Syndrome can struggle with slurring. Multiple sclerosis, muscular dystrophy, Lyme disease, Huntington's, Myasthenia gravis, amyotrophic lateral sclerosis, Parkinson's and Wilson's disease all can cause it.