In the sense of body type. I've heard many people use it, but it is as yet undefined for me. I'm inclined to think it's sort of a halfway point between chubby and muscular. IE a guy's not exactly in the best of shape, but still quite strong and has nice arms type of thing. Your thoughts?
There's cut, which is like, skinny but extremely well defined. Bruce Lee would be cut. Then there's buff, which is like, above average muscular. LL Cool J is buff. Jacked is like, huge. Like disgustingly huge, Arnold Schwarzenegger back in his heyday was jacked.