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1.
A friend with whom you hang out with only to better your personal image. An accessory friend is often mean, snotty and disliked by the entire friend group. The only reason the accessory friend is tolerated is because of their above average looks.
Bob: "Nicole, why do you hang out with Barb? I'm pretty sure that my antisocial cat has a better personality than her".

Nicole: "Good question! Barb is just my accessory friend. I only hang out with her because she makes me look good... kind of like these diamond earrings that I'm wearing.

Bob: "Good point. I guess she is kind of hot".
by Urbankid123 August 08, 2013