Rehab, like rehabilitation, suggesting that vyaches with verbal problems like always wearing trackpants and a fleece with no shirt underneath and chest hair showing and smelling like immigrant BO need to be rehabilitated. Which they do.
HAB is Palo Gang called Hannibal ad Bortas.
HAB leaders are Christian Hein, Mc-R. Gang holds territori all over Palo. The Gang was created by Palo teenagers in 1992 and now it gots about 2000 members in gang.