(as) mean as a junkyard dog
Exceptionally cruel, spiteful, malicious, or violent. Her dad is usually a pretty nice, chilled out guy, but he gets as mean a junkyard dog when he's been drinking. Don't go messing with that guy! He's mean as a junkyard dog—he'll rip your head off just for looking at him funny! You'll never make it in this business—you have to be mean as a junkyard dog to get ahead.
junkyard dog
An especially nasty, vicious, or savage person or animal (especially a dog). Of a person, often used in the phrase "meaner than a junkyard dog." Though he's always polite when he's in public, Tiffany's husband is meaner than a junkyard dog behind closed doors. That standard poodle may look cute and fluffy, but it's a junkyard dog, you can be sure about that.
meaner than a junkyard dog
Exceptionally cruel, spiteful, malicious, or violent. Her dad is usually a pretty nice, chilled out guy, but he gets meaner than a junkyard dog when he's been drinking. Don't go messing with that guy! He's meaner than a junkyard dog—he'll rip your head off just for looking at him funny!
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.