老兄 | lǎo xiōng | elder brother (often used self-referentially) / (form of address between male friends) old chap / buddy | |
驴友 | lu:2 yǒu | backpacker / travel buddy | |
酒肉朋友 | jiǔ ròu péng you | lit. drinking buddy (idiom) / fig. fair-weather friend | |
炮友 | pào yǒu | fuck buddy / friend with benefits | |
结伴制 | buddy system | ||
球友 | qiú yǒu | (ball game) enthusiast (player) / golf buddy (or tennis buddy etc) |