Fragen über die Beispielsätze mit, und die Definition und Benutzung von "Mcdonald"

A:
ㅋㅋㅋㅋㅋㅋㅋㅋ that is so funny, I have never heard that phrase before!
It would just be some form of slang for eating, similar to “chowing down on”, “wolfing down”, “scarfing down”.
It just means “to eat quickly”, “빨리 먹다”.

A: I also hear people say, "I'll get A" :)

A: You could say "McDonald's has a sale on French fries, 150 yen for any size. I bought 4 large fries. I'm stuffed!" Does that help?

A: "Sometimes I really want to eat at MacDonald's!"
"There are times when I really want to eat at MacDonald's!"
😊

A: After training, I drinked a coffee at McDonald's, which was the best.

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A: Some people hate McDonald's

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A: McDonalds.
I am in McDonalds.

In English we can also say - 'I am at McDonalds'. I would use this more often myself :)

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A: Sounds good to me. Though, if you want it to sound a bit more natural you could say it like this. "McDonald's in this building occupies two floors. The 1st floor being where you order, and the 2nd floor being where you sit.

A: You only need an article when the noun is generic - "I went to a restaurant" versus "I went to Greasy Joe's". That it happens to be McDonald's in this case is irrelevant. =)

Mind you, it's not completely ungrammatical to say "I went to a McDonald's", but "a McDonald's restaurant" is what's being implied, and no one ever really says that. =P