It stands for General Certificate of Secondary Education, and it represents one huge c**k-up (if I'm allowed to use that phrase, if not, one huge mistake,) in the educational system in England.
+118723 Well sorry I still have no idea. Remember this is an international forum, there is no point using acronyms etc that only have meaning in your country or in your state, province or district because most people will not have any idea what you are talking about. 
