A dishonest, shady, or sketchy person, often used
semi-jokingly. Anyone doing
something a
little creepy or not quite upright.
Person 1: Where were you at lunch
today?
Person 2: I was hanging out in the
woods behind the school.
Person 1: Where all the pot-smokers hang out? You shade!
or
Person 1 sneaks up behind person 2 and steals a
pen.
Person 2: You're such a shade!