To sketch on someone is to hit on someone and attempt to seduce them. Using the term "sketching on" rather than "hitting on" or "flirting" generally implies that the sexual advances are inappropriate or unwanted.
Prof. Watkins always tries to sketch on the girls in his class, and sometimes they hook up.
by Octarine May 27, 2008
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To be scared or nervous when doing something bad or illegal.

I was so sketched when me and my friend were smoking weed in the bathroom at school.

by Quicksliver July 12, 2008
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a term used to describe a situation, a person, a store, a restuarant, an item, basically any noun, that is of dubious character
That restaurant looks a little sketch; did you see all the bugs in there?!
by no one September 09, 2001
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Yo dude I’m so sketched about the test tomorrow “

“ I was so sketched walking down that alley
by heckeroni December 14, 2018
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(adj.) a situation, place, or person that posesses qualities that are ominous, scary, shady, out of the ordinary and or suspicious.
Hey, look at that van parked over there. Thats really sketch.
You're really quiet, why were you acting so sketch lately?
by Gabrielle D August 20, 2006
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Freaking out, paranoia. Often drug related.
See Dictionary.COM/search?q=Freak%20out
She was sketching so bad,
imagining cops behind every corner,
that she wound up in the psychiatric ward.
by Jeff_Relf September 06, 2005
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