Wait, what?
It's a phrase.
Taking the piss.
Taking the Mickey.
Pulling fun at.
Pretty much, just teasing him about it.
That's the stupidest stuff I have ever heard.
It may for you, but I've grown up with having a school uniform since I first went to school.
I don't have any problems with school uniforms and generally, when people do edit the uniform their own way, in ways the school doesn't like, they tend to look like idiots.
