Ku ku jiao is known as penis in Cantonese.
Watch out, don't hurt your Ku Ku Jiao when riding a bicycle!
by DaveJL July 27, 2018
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Also known as 'ku ku chye', 'ku ku bird' or simply 'ku ku', it is a hokkien euphemism for penis. Usually used by young children.
Eeyer! I can see his ku ku jiao!
by Rashid Khalifa May 13, 2021
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