lǎo​xiōng

old chap

老兄 lǎo​xiōng
old chap noun
An affectionate or respectful form of address between male friends
older brother
A self-referential term used by an older brother to refer to himself
fellow
An informal or slightly derogatory way of referring to a man (e.g., "this fellow")

Frequency

Movie subtitles
133.2 per million appears in 24% of films
Written text
2.12 per million

Sources