A sneaky, devious, or just plain lucky chap who manages to be sneaky, devious, and lucky in an endearing way. Often used as a term of admiration.
"Hugh Hefner is the only man alive to have slept with Marilyn Monroe, Barbie Benton, Anna Nicole Smith, and Pamela Anderson - at the same time! The sly dog."
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1. a person who can sneakily throw a log at a supervillain who is monologuing
2. a young boy who recently served horrible Thanksgiving food, and is holding hands with his aggressive critic
1. You sly dog! You got me monologuing! (while laughing) I can't believe it...
2. You're holding my hand, Chuck. You sly dog.
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someone who is tricky and devious but ridicously handsome
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a shifty-eyed individual would be best described as a "sly dog"
omfg George is such a fucking sly dog
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Someone who goes out of their way to screw you over, often doing so in a generally gay/homosexual manner which induces anger.
-Defined elitely by DarkGrieverX
"Man what the FUCK? Peter the fag and the Sly One are so fucking gay, they slept together in the same bed and still don't admit they are homosexual, those SLY DOGS."
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A person who is slick and makes hard things look easier than what they are. A sly dog is also someone who is good with sweet talking the opposite sex.
Tony is a sly dog. Did you see how he got Ashely's number then when and kissed Jada.
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The act of putting a hot dog (or bratwurst) into the freezer overnight, coating it in lube, and using it for anal masturbation.
Mom: Why did your brother put hot dogs on the grocery list, I thought he was vegetarian?
Sister: I think he is going to be doing a sly dog tonight.
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