Of dubious honesty; greedy, like a shyster.
They didn't give you your money back? That's hella shysty, dude.
by Danny Delinquent September 26, 2003
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adjective..
unfair, injustice;
synonym: grimy
common mispelling: sheisty, shyT, shisty

shy-stee
Kids: can we go outside today
Teacher: no weve got to work today
Kid: awww man dats shysty
teacher: what did you say to me> detention!
Kid: thats some shysty shit.
by O Brilliant One April 18, 2006
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To me the definition of shysty is a bitch. Not a bitch in the seance of a female or a dog, but a bitch in the sense of a person who dose deceitful devious shit.
If you go out your way to go behind someones back than your a shysty bitch.
If every word that comes out of your mouth is a lie you's a shysty ass bitch.
But when you lie to me about some bullshit and wont let me brake up with you because you want to wait until ya hoe ass finds a another "victim" and then break up with me almost a month after i broke up with you annd then try your damdest to be "cool" with me....
I got news for ya girl. YOU'S A MOTHA FUCKIN SHYSTY ASS MONKEY COCK SUCKIN DIRTY HUNGRY ASS BITCH
ShaQuaQua is a shysty ass back stabbin BITCH!!!!
by Cordiar December 10, 2007
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scummy, creepy, something that leaves you with a bad vibe
That guy leaves me with a bad vibe, he's shysty.

or

That's really shysty.
by Tamsin September 16, 2005
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Not shy or nasty. Sneaky or decietful in their motives. A person who plots and manipulates others to get what they want. Someone that will do almost anything to get what they want.
I better lock my car since there are alot of shystie people in this neighborhood.
by honesty2love December 22, 2006
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A person who is cheap, greedy, and/or selfish with what they have.
LISA - Can I get some gum?
DIANE - Hell No!
LISA - You soo damn shystie.
by LaLoka October 21, 2005
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Extremely greedy. Never ever shares. Does not even consider anyone or anybody.
Person 1: Let me get some of that.
Person 2: No!
Person 1: Dude, you are so shysty!
by Pur October 4, 2006
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