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The best word ever to describe anyone in any situation. It can be good or bad. Mostly used when someone is being annoying or dumb and you're in a situation where you can't call them something worse. Also related to the word dirty rat which is pretty much the same just someone being more sneaky almost disease riden like a rat would be. Dirty mongrel can be a huge insult or it could also just be a friendly insult you have to figure out which one it is. Dirty mongrel is the best word ever created. It's gnarly and rad at the same time no word can describe everything and anything in the world better than dirty mongrel. It's a word sent down from God himself. It's also fun to say.
Why did you just bite me, god you're such a dirty mongrel!
by Dirty mongrel July 15, 2014
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