bomber
n.— «Tagging or bombing, whatever the street label, graffiti art provides the participant with a rush and a mark of identity. In that, Berry succeeded. “Peter wasn’t just any bomber, he was one of the greatest,” said Worm, a tagger who declined to provide his real name because he still engages in illegal graffiti art.» —“Graffiti artist took risks to leave mark on a wall” by Bill Glauber Chicago Tribune Sept. 8, 2004. (source: Double-Tongued Dictionary)