Drakopoulos was a famous Greek hunter who discovered a way to trap and kill the Greek god Zeus. He at some point succeeded in trapping the deity, but since it is apparent that Zeus escaped from it, it is not known if he survived the encounter. Drakopoulos wrote all his findings, in his journal which was than translated into English by the Men of Letters and stored in the Bunker.
Drakopoulos, loosely translated into English refers to a dragon's genitalia. But in Greek it is a commonly found surname and actually means the dragon's son, or Drakos' son if Drakos is a name.
After extensive research, Dean finds a diary from a Greek hunter named Drakopoulos that detailed a method of trapping and potentially killing Zeus, one which involves the bone of his followers, frozen energy from the hand of Zeus (fulgurite) to summon Zeus and a stake made from a tree struck by lightning to kill him.
Dean goes on to remark the translation of Drakopoulos' name in English which he finds amusing since it means a dragon penis. The group later finishes Drakopoulos' work with Zeus when Prometheus kills him.