What do reccuring dreams about thinking your shirt is off mean?

The meaning of the dream depends on the feelings experienced in that dream. If you felt liberated and proud in this dream, it suggests that you long to be free from conventional rules and limitations. On the other hand, if the dream was embarrassing, it suggests that you feel unprepared for some task/responsibility, and that your weaknesses are exposed. The dream will recur until your current situation is resolved. Alternatively, the dream might recur each time you find yourself in a similarly embarrassing (or constrained) situation.