Acronym for "God Only Really Knows" - Medical slang for someone who has suffered a traumatic head injury and is comatose or in a persistent vegetative state.
This guy was shot in the head. He's never going to come out of his coma. He's a gork now.
noun - used to identify when someone has absolutely no intelligence, taken from the medical slang of the same name used as shorthand to signify a patient has no brain activity.
"Me'z der messag.. mesang.. TALKER of Gork 'n Mork. Mi'z arsho a sharman. Me'zh a gort er Big stikk, and, er, mezha gonna blurgeon any ladz 'n boyz 'n gobbos 'n stunties 'n tings, dart don't like Gork 'n Mork."