What does it mean when u get bad tongue pain?

It means time to see: Your doctor. Tongue pain can be caused by a primary localized condition affecting the tongue or may be due to a systemic condition. Recommend seeing your doctor since the possibilities are many.

Depends: If you bit your tongue you will, have pain that will go away in a few days as the tongue heals. If you did not bite your tongue there is something else going on and you should see a dentist or oral surgeon and have this checked.