A name given to many of the freelance lunatics who are wrecking the entire libertarian movement. This includes so-called "anarchists" and others who call themselves libertarians but who would really fit in better in the Democratic party or an insane asylum.
The term also describes Libertarian Party members who actually believe their group can win the presidency.
1. Keep an eye on your wife and your stuff around that losertarian.
2. Those losertarians haven't got a snowball's chance.