OK, based on what the OP provided, here's how I imagine the situation:
OP: (on his FB wall) Man, that Mrs. Firstclass is a b***h! She failed me! What a c**t!
Friend1: Yeah! What a *****! She probably needs some ****!
Friend2: (during school time) I heard she's ****ing some kid.
Friend1: No way!
Friend2: Yeah, dude, someone needs to beat that lady up. She sucks!
and so the conversation goes on and on and on, and 100 students see it. And they talk about it during school hours. And they comment on the post, during school hours. Even though OP expressed his opinion, be it crudely, he is the "owner" of that thread that expressed slander and defamed the teacher during school hours.
He could have proven he wasn't the one who defamed the teacher. He chose not to. He refused to provide the school with what the post actually said, fearing punishment. He messed up.
I'm sure he'll come back after school and tell us what his post actually said.
OP: (on his FB wall) Man, that Mrs. Firstclass is a b***h! She failed me! What a c**t!
Friend1: Yeah! What a *****! She probably needs some ****!
Friend2: (during school time) I heard she's ****ing some kid.
Friend1: No way!
Friend2: Yeah, dude, someone needs to beat that lady up. She sucks!
and so the conversation goes on and on and on, and 100 students see it. And they talk about it during school hours. And they comment on the post, during school hours. Even though OP expressed his opinion, be it crudely, he is the "owner" of that thread that expressed slander and defamed the teacher during school hours.
He could have proven he wasn't the one who defamed the teacher. He chose not to. He refused to provide the school with what the post actually said, fearing punishment. He messed up.
I'm sure he'll come back after school and tell us what his post actually said.