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.
Slurred speech, say wrong words, weakness, severe pain, confusion, crawling sensations and tingling in head. and more... Be seen ASAP: Even an ER visit may be wise if you never had these symptoms before and know of no good explanation - even if you do know you used a risky drug, etc. these sound potentially serious.