How can I tone my abs before school starts?

I'm 5'10" an 140 lbs.I have 2 months left of my Summer holidays and right now just have flab on my stomach,im really embarrassed about it because all the other guys in my class have great abs and are sporty.Unlike me im not sporty and have no visible...

abs.Is there anyway I can at least make them visible by the start of september?Whaat should I do daily,and what should I eat/not eat?

If you're into bodybuilding ..
fatburners + low carbs diet + lots of cardio (running) and no carbs after 6 pm
lots of coffee and probly a cigarette or two to boost your metabolism, NO trans or satured fat food .. if you don't get sh1t of what I'm sayin, msg me.

Even if you work your ab muscles by doing exercises like crunches, your muscles won't show if they are covered by a layer of fat. A combination of cardio and strength training is your best bet. Cardio burns body fat and strength training shapes those muscles. Seriously though, remember that even if you have awesome muscles, they will not show if covered by any fat. Strength training also gives a kick to your metabolism, helping your body burn calories when doing cardio. Good luck!