sly

secretive, being very smooth or mischevious

Wow Kelly you are one sly dog

Did you see her jump that kid, she was so sly

by Estafuton February 28, 2009

sly

A slang term for a man who is more sexually attracted to other men than to women. It is not usually derogatory but it can be sometimes. It has the connotation of a gentleman who is educated and refined and who does not "broadcast" their orientation.

"I don't think Chris wants to have sex with you Lauren - he's sly."
"I was totally plastered and I wanted to have sex with this really really hot guy, but it turned out he's sly, so he just walked me back to my dorm instead."
"I can never make friends with guys unless they're sly. Otherwise they are always staring at my breasts."

by Mark Williamson November 06, 2006

sly

used by north western youths meaning something is shocking or nasty or behind someones back. Also it could be dishonest

1. You took that munch from his bag? That's pure sly. = You stole that luncheon meal from his hold all? That is not very nice.

2. You told her you had were going the dentists? That's well sly. = You told her you had a dentists appointment? That is very dishonest.

by Lord Seabrook June 08, 2006

sly

1. (adj.) A word used in select areas of northeastern parts of America that is used in place of "cool"

2. (adj.) A magical word sometimes used to describe a funny individual

3. (n.) A first cousin

"The jungle is such a sly place to be at night."

"That guy's animation was so sly."

by THE TEA IS ON December 03, 2009

On the sly

To do something on the sly is doing something sneakily, like a ninja.

"Check it out, I stole this on the sly."
"I'm skiving off school, on the sly of course."

by Naevai April 03, 2009

Sly

To do something cunningly, preferably without any one seeing, apart from your best mate to prove you did it

"Hey Jo, see that girl there? Well we danced and she is now carrying my child!!!"
" Slllly!"

by Jizz muffin May 20, 2003

On Sly

Shorter, easier way of saying
'on the sly' meaning 'in secret' or 'not obviously'.

Usually pronounced like 'ont sly' by people from the north of england.

Chloe: aww look at you, you're well excited on sly!
Amy: I so am not!!

by cocacolaprincess21 August 07, 2007