Rudes wear designer gear and listen to garage/RnB/'hip hop' and they often hang around in big gangs and make up they're own language which no one can understand. Words/phrases in their vocab include: raggin' it, flossin', mingin', rank, nang, mingin' and many others including my personal favourite 'innit' which is usually thrown inbetween two random words.
In their gangs, a rudes main aim is to cause terror and abuse passers by even if they havent done anything. They often prey on greebos and beat the hell out of them just for being different.
Rude: Innit, I is blatently raggin' it man. Rah ma homie, dis is ma crew. What is you jibbzing bout?
Greebo: You are a total silly twat.