From gun loon (“crazy or deranged person”).
gunloon (plural gunloons)
- (US, slang, derogatory) A person obsessed with owning guns; a zealous supporter of the right to bear arms.
1996 July 1, rafe b., “Re: Rpt on San Jose City Council Mtg 6/18 PM”, in talk.politics.libertarian[1] (Usenet):Of course, to a gunloon, freedom is _defined_ by gun ownership.
2003 September 20, Siva, “Re: Pilot to passengers - I'm armed & drunk”, in alt.politics[2] (Usenet):Allowing pilots to carry guns is so insane and stupid that only a gunloon would support it.
2010 December 3, Fred, “Re: Thrill Killer -- NRA buttfuck rightards on National Geographic”, in alt.atheism[3] (Usenet):The problem is that these NRA gunloons don't believe that they also have the *duty* to own them *responsibly.*