发小 Traditional form: 髮小 Pinyin (reading): fàxiǎo Definitions: (dialect) close childhood friend whom one grew up with a couple who grew up as childhood friends Characters: 发 - to issue, to dispatch, to send out; hair 小 - small, tiny, insignificant Traditional characters: 髮 - to issue, to dispatch, to send out; hair 小 - small, tiny, insignificant