There was a horrible sound. The skin of his forehead distended as we yanked his head back. It stretched and distended until a sort of shelf of stretched forehead-flesh half a meter long extended from his head to the window. The sound was like some sort of elastic from hell.
Seriously? Hyperbole? Drug-induced hallucinatory distortion of reality? Sigh. I wish we had more to go on, or at least that the stuff we have to go on were more mature.