a mixed breed dog of unknown breed origin.

a dog that resembles many different breeds.
my dog looks like she could be a shepard/jack russell/sheltie or a whippet/collie/border collie or a corgi/shepard/whippet or a smooth collie/jack russell....she's a mystery mutt.
by Lisavi April 6, 2008
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White Mutt: noun: a white person that is from so many places you don't know where all they're from without from without an ancestry test. they will often tell you the exact percentages they get on any ancestry test they may get.
friend 1: I'm 20% German, 10% Irish, 2% Polish, 1% Scottish, .01% Jewish, 40% Scandinavian, 20% icelandic, but the reason I tan is because I'm 0.0002% Cherokee princess.

friend 2: girl. shut up. ur just a white mutt.
by bongflavoredprozac February 10, 2023
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Using disparate systems or things together in ways they were not intended to produce a usable result
IT Guy "We were able to use a lot of Mutt Fuckery to get the cyberwank and autocrap software suites to integrate in a way that they weren't designed for. It works, but we don't know how long it will still function after an upgrade."
by Security Geek August 25, 2023
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A person who does multiple drugs at one time. Often referred to as a drug cocktail.
He is such a drug mutt. He did cocaine, molly, and ketamine all at one time.
by ~Rosa~ May 7, 2023
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very common when referring to people who you aren’t on good terms with. generally used when you dislike someone for how they act or treat others.
basically if ur a deadset cunt of a human, most aussies will call you this, you fucking mutt looking mutt skank mf
that skank over there is a mutt looking mutt for double parking the cunt
by skankofallskanks2003 February 22, 2022
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Really bad weed , like the lowest of the lows
“That’s that mutt-chuck shit I wouldn’t dare smoke that . “
by Tyrique waith September 10, 2020
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