Evil Colonel Sanders
Sam: You get a name?
Dean: Nope. But... from his description? Evil Colonel Sanders. Asmodeus.
"Evil Colonel Sanders" is a description of Asmodeus that has caught on as a fandom nickname, due to Asmodeus, with his white suit, beard, and Southern drawl, resembling the founder of Kentucky Fried Chicken. In 13.07 War of the Worlds, the nickname entered canon after Dean refers to Asmodeus as "Evil Colonel Sanders" and in 13.13 Devil's Bargain, Asmodeus smells a piece of fried chicken before he throws it away in disgust. This was taken by fans as a shout-out to the aforementioned fried chicken company. In 13.20 Unfinished Business, Gabriel even calls Asmodeus a "Kentucky Fried B-Hole." In 14.01 Stranger in a Strange Land, the demon Kipling refers to Asmodeus' death as him getting Kentucky Fried.