The Goffer brothers discussed using the disposable cellphones to call someone they called 'the Greek,' the complaint says. His identity couldn't be determined.
Hellenistic or Koine (meaning common) Greek has been proved to be the language of the New Testament period through the discoveries among the Greek papyri.
Steve Kloves, the scriptwriter, stated during a writers' conference that he wrote it as "Greek chappie," but that it was somehow changed to "Irish chappie" during filming.