from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An aggressive dog which guards a scrapyard or junkyard.
- n. An animal or person with an especially nasty and combative demeanor.
Sorry, no etymologies found.
That's what Ol 'Nurse Haversmith ... she's the night nurse and mean as a junkyard dog ... that's what she said when they brought you back in a couple of hours ago after you'd gone sleepwalkin'.