#I don't know how to spell the Korean word or the exact translation but according to YD it's like

[royalarchivist]

Mike: Ok, now I'm going to teach you a swear word in Portuguese!

YD: Yeah, I want to learn a bad word too!

Mike: Ok, I'll teach you a very strong swear word. Filho da puta!

YD: [Pretends to start crying] That's really bad!

Mike: No, no! I'm not talking about you!

YD: We only met for the first time, and he called me puta!

Mike: Oh, whatever!*

YD: [Laughs]

* Mike is using Korean slang / a rude word YD taught him shortly before this exchange.