fark
n.— «Houvouras makes what are commonly known as “farks”—he’s not sure where the term came from—such as putting one person’s head on another person’s body for graphics that are a staple of TNT’s NBA studio show.» —“Cabin hosts green jacket rite” by Michael Hiestand USA Today Apr. 6, 2006. (source: Double-Tongued Dictionary)
Further reading
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...
Robin, in Jacksonville, Florida, has long wondered why the traditional collar word by equestrians is called a ratcatcher. There’s a long history in the horse world of referring to various forms of attire as a ratcatcher, including blouses and...
Surely “fark” comes from Drew Curtis’s fark.com where Photoshop contests are held in which heads from “O”riginal photos are commmonly transposed or bodies from previous contest photos inserted in new compositions, among other Photoshop techniques.
I think so, too, but there’s no evidence to prove it.