1. Wash it...
2. Take it out of the washer....
3. Stretch the shirt to a desired length... (will definately work!)
4. Hang on hanger and air dry...
5. Comb and style as usual...
6. If that doesn't work, repeat #'s 1-3 over and if that doesn't work, take it to the cleaners and get it stretched... You cant be that big, they stretch easily when wet...