freetard
Free Range Retard - An insanely stupid person who has been allowed to exist within mainstream society, often ignorant of their condition
The driver in the right hand lane decides to cut off 4 lanes of traffic and turn left at the intersection

guy 1 - "hey don't you hate that guy who always asks about exactly what the prof just said"
guy 2 - "Yah someone let him out"
guy 1 - "Absolutely...he's a real freetard"