My boyfriend is wanting to teach the kids not to take everything seriously,... But that doesn't mean they are bullys and doesn't mean that they don't have a good moral compass.

A few more examples:

My boyfriend's last name is "Blank DORF"
His boy at school had a bully one day in lunch in front of everyone call him "Blank DORK" and say "haha you're a DORK!"
His boy was not even phased! He turned around and said to the kid, "Oh come on, kids used THAT name when my dad was in school 30 years ago! If you want to put me down BE ORIGINAL." --Teachers told us this story.

And the boy also understands when it is too far.
At school there is a kid with muscular dystrophy who also has thick glasses. A kid at school was making fun of him calling him 4 eyes. Again my boyfriend's boy stood up to him and said, "People are going to start calling YOU "BLACK EYES" if you don't leave him alone!" --AGAIN teachers told us this--Very proudly I might add.

And we joke with people we love, sarcasm, teasing, we do it because we dont take things too seriously.

And my boyfriend is a construction worker 40 hours a week, then spends his evenings working on his father's farm, so He is VERY physical ALL day long.
I work at a desk, and when I get home I do all the bill paying and such.
So one Friday after paying bills, I go meet him at a bar in town. He is sitting at a table with some friends, when I come up he starts to get up to give me his chair then sits back down and says, "Well before I get up and give you my chair, which one of us has been sitting on their ass all day?"
Everyone laughed, and he got up and gave me his chair. And I said back, "Oh no please, take the chair, no need to start being chivalrous NOW after a 4 year long relationship, if you are going to start let it be a special occasion like my birthday, if you remember it this year." And he sat back down. And everyone laughed.

Or at work my boyfriend will have to work outside and he will be working with men(his friends) complaining about how cold it is and he will turn to them and say, "The heat is in the tools, you are cold because you've barely touched them all day."

And my boyfriend's grandparents have a picture of his grandfather kissing his grandmother sitting on a donkey when they were on vacation hanging in their livingroom with a handwritten caption my his grandfather saying, "Alice wanted a picture to remember the only time I've ever kissed her on the ass!"

This stuff is funny people, we joke with people we love!
Who cares what the world thinks of it, as long as the two involved are fine with it.

The line is ONLY crossed when someone is purposely trying to be mean. Or they say those things to someone they are not close with.
Otherwise if you are doing it to someone you love or are close friends with-there should never be a misunderstanding.