junkyard dog

(redirected from junk-yard dog)
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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, Tim'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.
See also: dog, junkyard
References in periodicals archive ?
Likely to be up against Gloucester's abrasive Frenchman Olivier Azam in a classic battle of the junk-yard dogs, Thompson wears a cheeky grin as he labels his Gallic counterpart as "a big cuddly toy" who will be "not too much of a worry on the radar.