Top definition
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
Get the mug
Get a Sly mug for your buddy Helena.
Jun 24 Word of the Day
An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.
Sarah: 'OMG Susan, I can't believe you are wearing the same skirt as yesterday. Oh, and by the way, EVERYONE knows what you did with Kevin on the weekend. Plus you look a little fat, are you retaining water?'

Susan: 'LEAVE BRITNEY ALONE!'
by Billy Chickenhole September 15, 2007
Get the mug
Get a Leave Britney Alone mug for your girlfriend Riley.
2
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
Get the merch
Get the sly neck gaiter and mug.
4
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
Get the mug
Get a sly mug for your papa GΓΌnter.
5
A guy I think that is cool and especially funny. He tries to put his grades up and tries to listen to the teacher when explaining a lesson. He sometimes draws but I don't think they're that good. Sometimes he's drawings are random, like sometimes he draws something cool and awesome and sometimes he just draws nonsense.
Sly tries to be cool around his friends and makes you laugh all the time.Sly cares what grade he gets and tries to recite in class. He tries to be quiet in his seat and tries to be obidient.
by Uncknown323>8 July 13, 2011
Get the merch
Get the Sly neck gaiter and mug.
6
Quinn: "Heard about the sly chick??"
Brugger: "Yeah I banged her on the pool table."
via giphy
by LegendaryBread December 01, 2016
Get the mug
Get a Sly mug for your barber Jerry.

Activity