Something bad that you are about to do that is equivalent to smoking weed in the bathroom of a police station.
Person 1: Hey dude you want to hang out tonight?

Person 2: Nah dude you're police station sketchy.
by Quicksliver August 25, 2008
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Used to describe a person that can't be trusted.

A game where players take turns naming a person know by the group (associate, politicians, celebraty, family) all players respond at the same time with either Shifty Shady or Sketchy as their own opinion of the person named. If answers are not the same players then explain and defend their choice. The discussion ends with everyone agreeing to the same verdict after hearing all evidence presented. If no unanimous agreement then majority vote is the primary title and minority becomes secondary or (tendencies)
Out of Shifty Shady or Sketchy we all agree Mark is Sketchy with Shady tendencies. And we all agree Penny is straight up Shifty
by B Cup October 5, 2020
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Free games, MP3s, unlocked paid software or other not-so-legit software downloaded from a website written in Chinese. You can usually find these in YouTube descriptions or shady blogs, promising hacks and bonuses such as free in-app purchases for games, but these apps usually contain viruses and/or adware.
Andy: I downloaded sketchy Chinese software to hack a game and now my phone is full of ads!
Kaine: I told you not to download sketchy Chinese software.
by Gearzein November 10, 2017
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A descriptive term applying to people, places, situations, with creepy, uncomfortable, bizzare connotations. See "sketchy"
What the mother! Sketchy Larry!
by Anonymous February 24, 2003
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The wooden crate in your head where all sketchy thoughts get flung to be dealt with at a later drug free date.
Wow that's weird... (I wonder if I'm slightly fried)

Yes indeed, it appears to be something for Yea Old Sketchy Box.
by Ma-nam-a-ray January 21, 2019
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The style of walk that one performs towards the restroom after sharting in his/her pants.
Check out that chick doing the sketchy penguin! I wonder if she's touching cloth...
by bpennn April 10, 2011
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