The Shitist thing is Australian I believe. I'm pretty sure it's just "shittiest" or just now looking at urban dictionary "the most shit anything can be".
As for the other, I just looked up Shakespeare insults haha. Apparently it's "Your face looks cold and unpleasant, and you seem angry." According to the page I found it.
Ah. Fair enough. I remember seeing the remake in theaters (not seeing the original) and being pretty disturbed afterwards (CONTENT WARNING: SA..........The rape scene is what did it). Although after all the other shit I've watched, I guess it's not as disturbing anymore.