jackroller
n.— «The manner in which three women were abducted and raped in Northampton coincided with the way in which “jackroller” gangs operated in South African townships in the 80s.…According to a paper published by the Centre for the Study of Violence and Reconciliation (CSVR), the word “jackroll’ was coined to refer to the “forceful abduction of women in black townships by a specific gang called the ‘Jackrollers,’ which operated in the years 1987/1988 in the Diepkloof area of Soweto.”» —“Rape gang may be ‘jackrollers’” by Ivor Price in London, England News24 (Cape Town, South Africa) Aug. 14, 2005. (source: Double-Tongued Dictionary)