four percenter
 n.— «Referring to the police colloquialism of “four percenters,” the relatively small number of well-known offenders responsible for the preponderance of downtown crime, Judge Baird Ellan said that the phrase can now be amended to “five percenters…street crime is becoming something of a crisis…“» —“Chief Provincial Judge says: “street crime…something of a crisis”” in Vancouver, B.C. CNW Telbec (Can.) June 24, 2004. (source: Double-Tongued Dictionary)