samoflange

Before Thundercats, it was a mysterious gizmo in World of Warcraft, though actually spelled "samophlange" there. The entire point of the quest is to bring it back to the goblin engineer so he can figure out what it is.

Pretty sure a samophlange/samoflange is a merely a maguffin.

All the internet geeks debated endlessly on the practical usage of a samoflange, but nobody ever quite figured it out.