Green’s Dictionary of Slang

(N.Z.) Britain.

1976		‘Len Lacey’ Loosehead Len’s Bumper Thump Book 14: Now it was true that the spudbashers [i.e. the Irish rugby union team] had about as successful a season in Pomgolia as a bomb disposal man with hay fever.
1985		Contact (Wellington) 7 June 5: During his month-long mission to Pongolia, Trev made a bird of talking to shopkeepers on their experience of the British version of GST.
1988		McGill Dict. of Kiwi Sl. 86/2: Pongolia Britain, modelled on Mongolia, promoted successfully by WWII soldier Les Cleveland, who told author he regretted ‘Pongoloid’ never caught on in the same way.
1993		Dominion (Wellington) 20 Sept. 61: I have a niece [...] who gets on the blower and rings up all her old mates in outer Pongolia or wherever.
1998		Guardian 5 Sept. 35/2: Still, for jimmy Grants from Pomgolia, things could have been worse.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].