chichi (2)youdaoicibaDictYouDict[chichi 词源字典]
"A woman’s breast", Late 20th century: military slang, of Japanese origin.[chichi etymology, chichi origin, 英语词源]
chichi (1)youdaoicibaDictYouDict
"Attempting stylish elegance but achieving only an over-elaborate pretentiousness", Early 20th century (in the sense 'showiness or pretentious object'): from French, of imitative origin.