On Chapter 5, Drake tries to persuade one of the pirates to open the gate for him. The conversation between the two is on a foreign language and is not on the subtitles.
What are they saying?
The conversation is the following:
Pirate: Ha-low?
Nate: Buka pintu.
Pirate: Siapa ini? Bicara sekarang!
Nate: Ah crap.
Nate: Sialan lo! Cepatan, buka pintu!
Pirate: Ah, tai!
Best Answer
According to this GameFaqs post, Nathan and the Pirate are speaking in the Indonesian language. Using Google Translate, their conversation is roughly translated to:
1 This one is difficult to determine. Any translator is unable to give me a proper English equivalent, and only outputs the same text.
"Tai" more than likely translates to a swear word or another explicit phrase of some sort. Based on the Dake's Fortune script, "Tai" is used three other times by Eddy Raja in context of frustration or anger: