Come si dice in Indonesiano? ah bisa aja

Vedi una traduzione

Here is an example conversation:
A: Hari ini kamu kelihatan cantik deh. ( You look beautiful today.)
B: Ah bisa aja. Kamu kali yang cantik (Why, I'm not. You're the beautiful one)

So it is usually used when someone is complimented, and the subject who is being complimented wants to sound humble by subtly refusing. It's a bit hard to explain; and it could also be roughly translated as "I'm not but thankyou" (except we don't actually say the thankyou part out loud)
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and usually the first person that was complimented reply the compliment to the other party after they said "ah bisa aja". just like in my example above.