Broader use can indicate a rich fake of any sort trying to be ghetto or otherwise cool.
Namesake of Mark Ecko, former NYC graffiti artist who faked the tagging of Air Force One in widely-distributed online video hoax.
See also: Fraud
See also: Poseur, Poser, Posing
Speaker #2: Fucking Mark Ecko.
--Keep graffiti away for the mainstream. Keep it away from MTV.
If you started writeing graffiti or want to start writeing graffiti, stop now. Don't ever start, graffiti is not cool, it's lame. Stop now and leave graffiti to the graffiti writers.--
Now fuck off.