1. (noun) Main rapper of the South Korean boy group Golden Child. (Lee Jang-Jun)
2. (noun) A very loud and extra person who everyone pretends to hate but secretly loves.
3. (verb) To bother, annoy, or generally be a nuisance.
"What did Jangjun do this time?"
"Man, that guy is such a Jangjun."

"I'm busy, go Jangjun someone else."
by jangjoos February 7, 2018
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Definition of Breakfast, Brunch, Snack, Lunch, Dinner, Midnight Snack, and every other meal out there. Post even only one pic from that and everyone will lose it.
"Have you seen that Jangjun Men's Health issue? Jinjja omaigad how can I buy it when I'm not even a man?"
by oronaminjc November 3, 2020
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