The creeps who drive around in white vans (often with no windows or advertisements on the van) and sometimes with a ladder on it. They kidnap dogs and the occasional kid.
Man, I was on my wayback from the market and I saw a pair of Dognappers!
Any person who abuses opiate derived drugs, especially heroin and oxycontin. This term applies to all addicts, whether or not they slam, snort or free-base the substance.