A term used in Belgium and Holland to describe a popular well-groomed girl with no real sense of style, whose outfit usually consits of a high-priced pair of jeans and a polo by the brand Scapa (of Scotland), which has the Scapa name and logo all over it. A big mouth and attitude also mark a Scapa bitch. A scapa bitch is usually part of a larger group of bitches who are dressed the same way.
Person 1: "You see that Scapa bitch over there?"
Person 2: "Which one?"