What does "belch the alphabet" mean? (alphabet/appalachia)

[Phoo]

I would like to know the meanigs of the idioms below.

What does "belch the alphabet" mean?
And "cocktails in Appalachia".

Thank you in advance!!

[Mister Micawber]

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Neither are idioms; 'cocktails in Appalachia' was coined for the Friends show, I think. 'To belch the alphabet' is to say each and all of the letters of the Roman alphabet in order while simultaneously belching. 'Cocktails in Appalachia' is used to describe an unpleasant public display of affection.
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_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber

[Phoo]

Thank you for explaining.
Do you know the etymology of "Cocktails in Appalanchia"?
And the meaning of "schwang"? Is thid word being used commonly???

[Mister Micawber]

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What do you mean, 'etymology' here? The individual words can be found, with their etymologies, in a dictionary. 'Schwang' sounds onomatopoetic, and could mean anything-- even an exclamation-- out of context.
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_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber

[Tom]

[Mister Micawber]

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I did, so you can. Just watch out for prescriptivists.
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_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber