That's because you're a girl; you don't get what it's all about.
So you are a boy and still have a bad opinion of a girl? I wonder how that came about. It perplexes me.
Yes, I'm a boy but that doesn't mean I can't recognize women are retarded.
I see you have this negative thing going on inside of you, it makes you blurt out phrases about females that are not acceptable. I suggest you challenge yourself to become more mature about females and respect them for who they are individually and not clump them altogether as the same. Some people are dumb but many are quite smart.