Macon is added when the person is super dooshus.
Joe: Yo wassup?
Dude: Nothing much..homie.
Joe: You wanna do me a favor and pay me back for that beer last week?
Dude: (runs away)
Joe: What a Gandolf.
Joe: Hi I would like a burger, fries, and a coke.
Dude: Ok sir drive around.
Joe gets the food and goes home and checks his bag of food.
Joe has received a fish sandwich, onion rings, and diet coke.
Joe: That motherf****in' Gandolf Macon.