One's own skin. "in the gonk" (naked). My father (1923-2005) used this phrase in our childhood. His father was in the British Army (Royal Engineers) in WW I, so the army slang "gonk bag" for sleeping bag, is consistent.
A 'Gonk' is the way to describe someone who is unemployed and spends most of there time smoking marijuana and listening to 90's metal. The typical 'Gonk' is most commonly bisexual and will have sex with almost anything that has a pulse. Although they tend to travel in packs, you will not see this specific class of person at any bars or clubs though as they frighten easily. You will only ever see these types of people at house parties held by other 'Gonks'. A gonk can be identified purely by look and through their methods of communication. The average 'Gonk' will have an unusual hair cut or be wearing an old hat. They also have many piercings and tattoo's and look as though they haven't showered since the early 2000's. A female gonk is, in most instances, a lesbian and has no issue about getting in your face and making comments about you that you don't understand. 'Gonks' range between the ages of 20 and 40 and can even adapt to spawning little 'Gonk' children.
"N'awww, why the hell do we have to go to a party with a bunch of freaking 'Gonks'"