Wow...so it was ok for her to call you a ***** but it wasn't ok for you to say "shut up"? Nice priorities, Mr. Administrator!
With DS, it mostly happens in the hallways with kids who are a few years older than him, or at recess with his classmates, most of whom are a year older than he is. He's the youngest in his class. And a lot of it is, like you said, the verbal...calling him a cry baby, intimidating him, calling him names. DD has a group of girls who talk about her behind her back, but one occasionally says things to her, but she's a bit stronger in the moment. She comes home and cries and we talk about it and she feels better...I have a meeting with her teacher on Thursday. But in that moment that the girl says something, she can stand up to her. DS can't do that...he doesn't have the skills and he is emotionally behind. He panics and freezes and can't process it, so he just bursts into tears. Hopefully we'll get it figured out. DH told the school in no uncertain terms that we're not having it. He will NOT be the target for another 2 years and they'd better come up with a plan quick.