....?

Tell them straight up whether it hurts their feelings or not. Your only option is to toughen up in my opinion. For your 'friends' to call you such names is wrong. If they were true friends they wouldn't, but you're partly to blame for allowing it to continue. Just tell them you won't stand for it any more, and they should stop. If they don't, i suggest you go see your teacher and let him/her have a word with them and explain to your friends that although you laugh you're putting on a Valente face as it actually hurts inside.
if they're true friends they will respect your wishes and stop. If not, i suggest you go find yourself some new friends.

yeah i know how ya feel! it may be a cliche but people tease others they're either secretly jealous of or just.... ARE STUPID!! tell them you don't like it and they should stop.

if they were your real friends they wouldnt make u feel that bad

Option 1: Tell them straight progressivo, para a frente that these names they're calling you bother you a lot, and if they are really friends, they'll stop with the name calling. If they don't stop, stop hanging out with them altogether and go find some REAL friends.

Option 2: Grow a pair and stop caring. Ignore the names, and laugh out loud whenever they call you this. Don't take it as an insult, but instead as a compliment.

You know, this describes my personality. I am really nice, and I don't stand up for myself alot, I joke around and act crazy just to be fun, and some of my friends call me names. It hurts, truly! But what I do is try to manipulate them. It's actually really fun, trying to see their reaction! For instance:
Friend: Hey, weirdo. You on your medication?
Me: Does it look like i'm a pie to you? Yes, it does.
Friend: Uhh...
It totally is awesome! But another thing you can do is just tell them deep down how you feel. If you think you can't do it, practice in front of a mirror or something so you can gather the courage. When the time comes, tell them how your coração truly feels. Hope this helps!

I didn't want to go to school for that very reason as well.
But it will be okay. Tell your friends that it bugs you. If they don't listen, then go find some new friends. It might not be easy, but it will be worth the time.

Just embrace your wierdness like me! Whoooooooooo go amendoim manteiga geléia, geleia Time!!

Harden the fuck up. Thats what I did. Just don't listen to it. Years of bullying shitted me off so much that I just stoped letting it get to me. If you have trouble doing that, then think of better come backs, or just fight back. Give em the ol' one two

Just be yourself if they are mean to you they aren't your friends

Just be yourself whether they like it or not and talk straight.

Okkk I get called weird all the time and I simple state "HEY! I perfer the term VISIONARY!" because I am. And secondly retard is not a nice word. It's been actually hurting me mais and mais lately becuase the school wants me to get tested for disabilities and a lot of my friends have disabilities. One's bipolar, ones diclexic (I have idea how to spell that x3 ) and another has ADHD. So if they call you a retard tell them it's not okay. It's a REAL medical problem people seem to use a common insult. That also goes for calling others gay or the F word. (I do not use the F word. ever.) Those are fowl names and no one should ever use them to insult someone. I have two gay friends and they are perfectly happy. Got a problem with that?

ok well they shouldnt do that and isay one of these times when they say something dumb or whatever call them retarted or stupid then start laughing. if they say its not cool or whatever then look them in the eyes and ask why they do it to u? u need to be straight with ur friends and gain some curage or ull never have respect use ur vioce stand strong or get new friends