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!! :roll:

[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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Native English teacher at Mister Micawber's

[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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Native English teacher at Mister Micawber's

[Tom]

[Mister Micawber]

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I did, so you can. Just watch out for prescriptivists.
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Native English teacher at Mister Micawber's