Sketchy 

Describes behavior that is erratic as a result of the use of rave/circuit party drugs (such as methamphetamine, ecstasy, ketamine, or less frequently gammahydroxybutyrate), or describes the person who exhibits the behavior.

"I saw him after the circuit party and he was big, sketchy mess."

Sketchy by CircuitDaddy February 4, 2004

sketchy 

A very shady character, someone untrustworthy.

I'd stay away from that guy, he looks sketchy.

sketchy by Rawar August 5, 2005

Sketchy 

Originated as a skateboarding term, meaning "sloppy landing". Now commonly used as "uncertain, unfriendly, creepy, unsafe".

1. That trick was sketchy. I'm going to re-do it.
2. This neighborhood looks sketchy, let's get out of here.

3. He looks kind of sketchy, I don't think I can trust him.

Sketchy by skatefussbus June 13, 2013

Sketchy 

Dangerous, esp. with regards to illegality
unsafe,

Buying drugs in a police station parking lot is sketchy.

That's a sketchy bridge, lets not walk across it.

Sketchy by Chuck March 31, 2003

sketchy 

A riff on the archaic definition of sketch:

1. A hasty or undetailed drawing or painting often made as a preliminary study.

An outline, where not all of the elements are completely clear or known; can refer to a person, place, object or experience; frequently refers to a shady element, something hidden and potentially dangerous; often refers to being up too long on speed and the loss of clarity that comes with sleep deprivation

Are you sure you want to give your car keys to Patrick, he seems a little sketchy.

Gurl, I was fine on day three, but day four was a little sketchy.

Angel is full-on sketchy; she would steal the teeth out of your grandmother’s mouth if she thought she wouldn’t get caught.

sketchy by Pop Tart January 12, 2005

sketchy 

Something that just doesn't feel right. If it makes you bob your head side to side, squint, and say, "ehhhhhh", then it's probably sketchy.

"Ehhhhh...."
"I agree. Yeah, this is totally sketchy."

sketchy by angryggggg September 19, 2009

sketchy 

when a person is kind of shady, they are sketchy. when you are not sure what a person means by something, that is sketchy too.

It was sketchy when bobby lobby showed up in random places all over the ship, giving people the impression that he was stalking them. gabriela also showed a lot of sketchyness when she said that her skirt made her feel loose.

sketchy by gabriela August 1, 2004