A young woman who is VERY VERY thin either of her own choice or by circumstances out of her control. Typically she will be anorexic looking, and even the tightest jeans will be loose on her creating a shitpants type effect. Even under careful observation no breasts or ass can be seen, and she has none of the curvature of a healthy female whatsoever, in fact she looks rather like a wooden plack or toothpick. She can however be attractive in the face. Copulation with these women is not advised. (See example below)
"That stickchick is dead, cuz I split her in two with my dick"
"Next time your at the Eating Disorder Center say "Hi!" to all the anorexic stickchicks for me."