I know this doesnt go here but all of this happened at school...

...ok this girl thinks that I called her sis white trash and now her and her
cousin are trying to 'whoop my ass' and I dont want to fight but I dont
want to look like a wimp and plus she turned my sister agianest me and I
just got her to trust me again and now rumors are going around the school
sayin that I said that I whoop her ass and that I was going to whoop the
lil sis of the girl that thinks that I called her sister white trash and I
am scaredof the cousin and I know that I cant fight and plus my mom knows
what happened and she reported it to the school and they wrote her up for
it and now I dont want to fight but I know that theyr are going to want to
whoop my ass but I dont want to and I didnt call her sister white trash
and I tried to tell her that but she wont listen to me. What am I suppose
to do????

whoa. tell her you don't want to fight her 'because you didn't say. just don't care what people say or think about you. it's called being mature, not a whuss

I've been through that same situation many times.Just tell her maturely that you don't want to fight because you never said that and just ask if you can keep it cool or something because you don't want any problems