Jig_Master's definitions
Someone who is very immature and childish. They are grown up but act like a bunch of 5 year olds. A Hyunsoo does stupid things that embarrass people around him/her.
Dude seriously stop spitting water at random people! Are you a fricking hyunsoo?? You're not 5, cut it out.
by Jig_Master May 23, 2014
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