Punch it out and lose 2 inches fast

"Add boxing to your cardio routine. When you throw punches with weights or at a fast pace, you're working your core in a way that helps to flatten your midsection. You must engage your core to throw punches, and twisting your torso works all the ab muscles.
Boxing also gives you a cardio workout that burns extra calories. Add 16 minutes of boxing three times a week to your regular cardio routine (30 minutes at high intensity four to five times a week), and you can lose up to 2 inches from your waist in four weeks. Simply throw punches while holding 1- or 2-pound weights for 8 minutes, alternating arms, then repeat without weights at a faster pace for 8 more minutes." Sourced By yahoo health 
–Michael Olajide Jr. and Leila Fazel, co-founders of Aerospace High Performance Center in New York City

Put crunches last on your flat-belly list (for real!)

"I recommend the DCBA approach: Diet first, Cardio second, Building muscle third, and Abs exercises last. Follow it and you can safely lose one to two pounds a week. Spend 60 minutes a day preparing healthier meals. Spend 20 minutes a day three to five times weekly doing cardio. Spend 15 minutes a day three times a week strength training. Finally, spend 5 minutes a day three times a week doing abs exercises."
–Myatt Murphy, author of The Body You Want in the Time You Have  Sourced by yahoo health