Wangster American informal noun slang
It is a combination of "white" or "wannabe" and "gangster," and it is occasionally styled as "wangsta" in the same way that "gangsta" is.
A person, usually a Caucasian, who wears and acts like a member of an urban gang without really engaging in criminal activity.
Mark is just a wangster. If there is a robbery, he will wet his pants in fear.
He has watched such lots of gangster movies that he thinks that he is a real gangster, but in fact, he is just a wangster.