Just had a question come up . . . "How long does it take to get abs?" Well, it depends on what kind of abs you want! For killer rock hard 6-pack abs, according to the Hollywood Physique for Men by Clay Rogers, it takes about 13 weeks of sustained, NO NONSENSE, work to failure exercising and Paleo-like dieting (with your 1-hr binge eating, of course). First, I would focus on losing the excess weight. 
     It's a fact, everyone has abs! And if you can't see them, it's 100% due to the fact that you've got a few pounds to lose, no matter how skinny you think you already are! If you can see your abs, but they're not as defined as you'd like them to be, then focus on your large muscle group exercises that require stabilization of the core. Rogers is anti-direct ab work because of their tendency to shock your central nervous system and grow your ab muscle (counterintuitive, but that actually causes them to GROW, making you look like you have a gut underneath your form fitting shirt).
     Ask me more questions! I'd be happy to answer.