A model who trips and falls on the runway

This is a term used when someone, usually a girl wears an item of clothing that is tacky, cheap and just plain wrong.

when a person tries to dress fashionable or thinks they are doing so but ends up looking ridiculous

An out-of-date clothing style, or other fad, that has been overtaken by something 'new', i.e. the old has been run over by the new.

Anyone who is into fashion or Sex and the City knows about the time when Carrie fell flat on her face in the middle of the runway during the fashion show. So that's what it is its when you fall in the middle of the runway during a fashion show.

Someone who got run over by a road vehicel while lookin' extremely good.