What should I do? I don't wanna deal with these stupid boys?

First off, these boys are popular (spoiled, bratty, bi*chy,no life, brainless) btw I'm not saying all guys are like that. They think they're so cool just because they have that ugly looking bieber hairstyle and comb their hair every time they do their little hair flips. OK so here's the story. Every single day my friend and I have to put up with them. They keep butting into my conversations, making fun of me because of what I do or dress like (Only when I'm not looking,but I hear them), and they keep calling my friend a f@g. No matter how much I tell them off they just keep going and being a wise a** after everything I say to defend my friend and I. I have told teachers and I even went to both of the assistant principles, but they don't give a damn. We told our parents and they either say ignore it or talk back to them or teachers. I told them I tried, but they keep telling us to do the same thing. I don't know what else to do. I'm so angry that I feel like I wanna cut their balls off. Any advice? I don't wanna deal with those schmucks no more.