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A Gangnam girl is referred to a girl who looks pretty but only because of plastic surgery. It is derived from South Korea's "Gangnam" district in Seoul which has heaps of clubs but even more places where you can perform plastic surgery.

It is important to note that being a Gangnam girl is not necessarily bad but it can result in serious consequences if one does not recognise that they are a Gangnam girl and is not natural.
John - Omg look at that hot chick.

Lisa - Ummm, I am pretty sure that is a Gangnam girl. Look at those eyes.

Liam - You're right. I'll still go for her though.
by HuangerGames March 06, 2018
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