Someone who can't go a minute in a conversation without lying. Beyond exaggeration to the point where people actually get mad and want to punch or spit on that person. Normally Male with short black hair, and the features of a crack baby.
Johnny: Dude, last night I was driving and i had my arm out the window and a car hit my arm going the opposite direction.
Evan: Dude, shut up.
Johnny: Then I went in the woods and found a Heroin Factory.
Evan: I will spit in your face if you don't stop lying you fucking Pross!