What? Pomgolia?

[GoodTaste]

Does "Gregg's dad" call the UK both as Pomgolia and "disgusting sh* hole"?

The form "What? Pomgolia?" is not very clear in grammar to me.

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Pomgolia
New Zealand term of abuse for Britain, reflecting the terrifying, dangerous wasteland that it has become. Used by British expatriates who have moved to NZ. Pom = Australian & NZ slang for a British person + suffix suggesting Mongolia, windblown desert area of Asia, renowned for its banditry, unpleasant climate and remoteness from civilisation.
An Auckland conversation I overheard:
Gregg: Do you think you'll ever go back to the UK, Dad?
*Gregg's dad: What? Pomgolia? Not f^cking likely, not after last time. I'm leaving that disgusting sh*t hole behind me.

Source: Urban Dictionary
https://www.urbandictionary.com/define.php?term=Pomgolia

 

[Tarheel]

Does "Gregg's dad" call the UK both [STRIKE]as[/STRIKE] Pomgolia and "disgusting sh* hole"?

The form "What? Pomgolia?" is not very clear in grammar to me.

===========================
Pomgolia
New Zealand term of abuse for Britain, reflecting the terrifying, dangerous wasteland that it has become. Used by British expatriates who have moved to NZ. Pom = Australian & NZ slang for a British person + suffix suggesting Mongolia, windblown desert area of Asia, renowned for its banditry, unpleasant climate and remoteness from civilisation.
An Auckland conversation I overheard:
Gregg: Do you think you'll ever go back to the UK, Dad?
Gregg's dad: What? Pomgolia? Not f*cking likely, not after last time. I'm leaving that disgusting sh*t hole behind me.

Source: Urban Dictionary
https://www.urbandictionary.com/define.php?term=Pomgolia

The context should make it clear that Gregg's dad uses both of those terms to refer to the UK. As for "What?" that is clearly an interjection.