According to the 'Dictionary of Sung Ju' or 'Sungjunary',
Sung Ju is a typical Korean name usually for guys but it is neutral enough for gals to use it too.
Those who are cool as Sung Ju are not afraid of being childish.
They have a strong inner child within them with a poetic twist.
Sung Ju usually oozes coolness and get irksome by Justin Bieber.
A: After my college lecture, I went out for trick or treat with my buddies for candy.

B: Man you are such a Sung Ju! I wish I was gutsy like you!
by The wisdom of Sungjunary October 31, 2013
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