A Caucasian individual, from a middle class or wealthy background, who has an uppity or entitled manner. Pronounced "PeeWee" in reference to the famous prototypical example of a PWI, Pee-wee Herman.
Dude 1: Dude, where were you last night?
Dude 2: I spent the night in jail.
Dude 1: What the fuck did you do?
Dude 2: I got caught for PWI.
Dude 1: Where did you plank on?
Dude 2: On a cop car with the cop still in the car!
Peet worthy idea. PWI is a data driven way to make choices. "Hey, I got an idea. What if we created a dictionary of the urban language." Yea, that's totally PWI. I'm in!