the translator just copied what the app translated so it became too confusing. I haven't seen the raw but maybe he used "ahjussi" which is a term used to refer old man or older guy than them. It doesn't necessarily mean uncle coz bruh that really ruined the mood.
I believe in Korean there is this word, Ajussi: older males/uncles. So it can be used to describe older guys even if they are not literally your uncle.
THANK GOD IT DIDNT GO THE OTHER WAY