According to wikipedia the term 'lame duck' can be attributed to the status of a sitting president choosing not to seek another term at the expiration of the current term. Its about about four months to the next general election and the president is yet to verbally sghow his intention to seek another term in office, though the body language seem so.
I dont want to believe the defending words such as 'he need to concentrate on the current job at hand and not be distracted with 2015' if you are politically inclined you will know thats not possible. VARIOUS support groups and even people from his clan are clamouring that he declare his intention.
With all these a part of me is of the opinion that the pqresident might want to be humble and trail the path none in the history of Nigeria has voluntarily trailed to surprise us. Who can say.
This is my personal view and opinion.