Originally Posted by Adept

ABD = Attack By Drawing.

It is a Jeet Kune Do concept of fighting. They actually use this in boxing as well. It's when you leave yourself open somewhere, letting the opponent think he can hit you there, and counter him as he attacks it.

For example, bringing your hands down to your hips would most likely make your opponent think he can jab/cross you, and then you counter by slipping the punch and launching a kick to his stomach.