to be goth served is a higher degree of serving. it is from the south park episode that makes fun of the movie, You Got Served. In many circles it is condsidered a higher form of being served and more severe. Others think of it as being served about a goth (or, occasionally, other scene) faux pas. Still some believe the only way to be goth served it to be served by a goth. This includes any form of serveage.
Part of the saying as old as time: “If you judge a man on his ability to make it to Goth Starbucks he will forever live thinking he’s stupid”… little known fact that this is what the actual saying Einstein famously said.