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's possible, which is why this isn't a risk you should take to chance, but it's uncommon. It's possible that what you have is anxiety, and anxiety can cause slurred speech, as well as issues that resemble slurred speech. All of the following are potential links between stress/anxiety and slurring of words: