1) Australian English term 2) Gang in Australia 3) Modern street gang 4) Some felt-tip markers 5) Some permanent markers 1) Con men 2) Pens 
[Australian subculture] Sharpies, or Sharps, were members of suburban youth gangs in Australia, most significantly from the 1960s and 1970s. They were particularly prominent in Melbourne, but were also found in Sydney and Perth to lesser extents. Sharpies were known for being violent, although a strict moral code was also evident. The name ...
Sharpies was Australian slang for a 1950s teen movement characterised by short-hair and aggression.