GIMP (gĭmp) n.
(1) a derrogatory term for someone that is disabled or has a medicial
problem that results in physical impairment.
(2) An insult implying that someone is incompetent, stupid, etc. Can
also be used to imply that the person is uncool or can't/won't do what
everyone else is doing.
The Gimp is perhaps a plot device to the hypocrisy of LA policemen. They are supposed to always "protect and serve" but sometimes they "do other things" to you. Or perhaps The Gimp is an updated version of Bill McKinney's role as the "backwoodsman" rapist in Deliverance? Whatever the deal, it remains a cinematic icon forever.
But what happened to him? Please speculate