#3

No problem, mate.

没问题,哥们儿。

Méi wèn tí, gē men'er.

《哥们儿》 is one of my favourite words in Chinese. It sounds like no word you'd find in English. Literally it means 'brothers', as in to say 'we are brothers'. Perhaps in the same way people in East London say 'how's it going bruv?' 《姐们儿》 is the female version.

example:

“等一下,我去厕所。”

“没问题,哥们儿。”