Common Japanese expression, short for "ah so desu ka".

"Ah" means "ah" like in English.

"So" means "that kind of thing" or "that way".

"Desu ka" (pronounced "des-ka") means "is it"? Desu is the verb to be, and ka makes it a question.

So the meaning is "oh, that's how it is."
Kyou-wa ii tenki desu!

It's a nice day today!
by Nils Kelly March 9, 2006
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1)A word that essentially acknowedledge any kind of statement or news.
2)Also said by old asian men in cheesey kung fu movies
3) Short for "ah, it is so"
yeah, i came out of the closet and my dad shot me to death

Old asian man- Ahsooooo....

So you went to california?
by ManOfTheDiaspora June 1, 2005
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A passive-aggressive way of calling someone an "Asshole" while faking polite interest and agreement.
Boss: "Now make sure you put the tools away when you finish ."
Worker: "Ahso..."
Boss: "I say this so you don't forget"
Worker: "Funk you. Funk you, velly much, Bossman."
by Gabbro May 31, 2018
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American way of writing the common Japanese phrase "Aa! Sou?" which means, "Oh really?" It's often used in conversation, not to answer a question or react to something, but simply to let the other person know that you're listening. It doesn't require a response.
Correct and Incorrect responses to Ahso:

1: Kyou de sushi wo tabeta. (I ate sushi today.)
2: Aa! Sou? (Oh! Really?)
1: Hai, hontou. (Yes, it's true.)
This is wrong because Person 1 gave a response.

1: Kyou de sushi wo tabeta. (I ate sushi today.)
2: Aa! Sou? (Oh! Really?)
1: Maguro datta. Suki datta. (It was tuna. I liked it.)
This is correct because Person 1 continued without acknowledging Person 2's remark.
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