[Fred Nerks]

Joe Bloggs (British male, referring to anyone of unknown identity)

Fred Bloggs (British male, referring to a subsequent unknown person)

Fred Nerks or Fred Nerk or just Fred (as in "Fred, you can't turn right here" (Australian equivalent of Joe Bloggs))

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[Conan the Librarian]

Australians REALLY like the Goon Show. ergo...