1º_ It is a hypocoristic very little used in Spanish despite being a Castilianization of the English Dee Dee ( dii dii ) for names that begin with /D/ ( which in that language is pronounced 'di' ) . Still, it can be a name from Indian or Chinese voices. 2º_ DiDi is the name of an app and the chauffeur-driven car rental service of the Chinese company 28404; 28404; 20986; 34892; ( dii dii chuuxíng ) . This brand seems to be a camelcase of the first letters of the founding companies: Didi Dache and Didi Kuaidi (although I didn't confirm it).
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