Somebody who lives their life doing everything they see in the mainstream media. Whether it's tanning and shacking up like the people on Jersey Shore or Facebooking tweets and Tweeting Facebook posts, these people live inside the box.

Stream riders are often given this title by morose, ill-mannered hipsters who refuse to "conform to society's norms", while ironically they all wear the same type of shirt found at a shirt swap making 80's era references, smoking constantly and drinking Pabst Blue Ribbon and living off their parents' money, contributing nothing to society.
Female Stream Rider: Hey girl, you totally gotta check the new J Biebs single!

Female Hipster: You are such a stream rider. I gotta blog about this while taking numerous pictures of myself with my Polaroid.
by McDougles February 11, 2011
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