My coworker taught me the term 중2병 [jung-i-byeong]. This might be most comfortably translated into colloquial American English as something like "8th-grader-itis" – meaning bad behavior in 8th graders due to their being eighth-graders. Literally, it's something like "2nd-year-middleschool-disease."
Given that this is something I was struggling with, recently, it seemed a useful term to know.
What I'm listening to right now.
The Rural Alberta Advantage, "On The Rocks."
[daily log: walking, 5 km]