What is "roffa"

Roffa is a 2013 Dutch independent drama film about football hooliganism. It was directed by Bobby Boermans and stars Loek Peters, Ilse Heus and Joost Koning. In the film, a former hooligan and member of Feyenoord football firm U.D.F. is released from prison and while trying to get his personal life back on track with his family, is pulled back into the violent activities of his firm.

Throughout the film, Feyenoord's U.D.F, fight other "firms" such as A.F.C.A, Vak G, Bunnikside, Ben-Side and Spangenaren.