It’s from the 2008-2010 variety show Family Outing. Jaesuk gave Jongkook the nickname “Kookjong” and has been using it since then. I’m happy that after all these years, he still uses this nickname of Jongkook:DD

-Mat

7 years ago, 18/04/14 | 18 notes
#answered #*

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5. katmouse said: And I think maybe b/c kookjong sounds like the Korean word for “worry” so sometimes Jaesuk calls him Kookjong when Jongkook is nagging about stuff.
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