When something is sold at a price far below market value. It is as if the seller is so desperate for drug money that he/she is willing to sell the item at any price regardless of how rediculously low.
"I just got 50 inch plasma screen T.V. at that yard sale! It was like crack head prices over there."
Some dude that is obsessed with doing drugs and going to parties. He is very adept at getting kicked in the groin and making an all around general fool of himself.
Dude, did you see Crack Head Grant at that party?
Yeah, he was so fucked up!