A radar for when things are sketchy.

A person who is questionable and weird

An expert at putting themselves or others into sketchy situations.

A case of extreme sketchiness.

feeling that something is "sketch"

Also known as "being sketched out" Generally used by stoners referring to cops.

Run away very fast - Irish slang, used mainly in the south, particulary Limerick

Noun and Adjective. Meaning a person certified in the art of sketchyness. Also a snake.

You know you want nothing to with this.

(n): people with the complexion, facial hair, and other characteristics commonly attributed to Mexicans, who are generally socially awkward and as a result sketch around the place; often attracted to anything (animal, food, human, other object) that is black or very dark