Definitions by Sejunn

sunggyus puberty 

when you stay up for hours and your eyes get really small (chinky)

Sunggyu is the leader of kpop group infinite. He is known for his small eyes and I'm sure that his puberty was full of chinky jokes.

Friend 1:
"I've been up for hours!"
Friend 2:
"Bro are you going through Sunggyus puberty?"

sunggyus puberty by Sejunn October 6, 2013