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Somebody who is strong and good in a fight; a beastly person.
These guys started shit with us, and my friend Mike knocked out all six of them. He's a junkyard dog.
by George February 23, 2005
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2
A car, usually late 60's-70's era American muscle car, that is left in primer, and built up to beastly proportions, giving it a rough, loud, aggressive presence.
"My friend's 500 horsepower, primered '70 Chevelle is a real junkyard dog..."
by CeeCee666 June 30, 2009
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3
Overly teethy aggressive penile oral stimulation.
Damn, Kathy, you were on it like a junkyard dog.
by ToeBang January 24, 2017
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4
1. a particularly vicious and dangerous dog, especially one chained up as a result of it's attacks

2. a particularly vicious and dangerous person

(dogs of such a temperament are frequently used to guard junkyards in movies)
If I have to deal with that junkyard dog again I will give it's owner a piece of my mind.
by The Return of Light Joker July 25, 2009
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5
just skin and bone and cock
Man, do you see jimmy; that fucking guy is like a junk yard dog .. โ€œ all skin and bone and cockโ€
by Slusss6969 February 07, 2018
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6
is a paid political operative, an attack dog on a leash. A Sunday morning talking head. yelps about the virtues of the Democratic faith.
Liberal talkshow hosts are junkyard dogs.
by Liberal killer December 25, 2009
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7
a junkyard is an established male who doesn't shit from anyone... not even another junkyard dog. any female who is already intimately affiliated with a junkyard dog is called a "bitch". any feamle in pursuit of a junkyard dog is calssified as a bitch in heat.
"Hey dude aren't those the junkyard dogs over there?"
"Yea man watch out, they dont take shit from nobody, not even eachother, oh and i think those two girls with them are bitches."
by PitbullJYD420 September 08, 2009
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