I class a chav, as somone, standing on the corner of streets, dressed in hoodies and tracksuits, drinking cheap alchahole.. When you ride past, they'll either try to mug you, or throw shit at you or in scotland stab you with a knive Thus they are scum. here in scotland chavs are called neds and they always ask me "were is your seat" or "do a pedal wheelie" so funny i laugh and wished they would shut up and grow some brains and balls