Korean Slang
덕후
deokhu
What it means
A superfan, a geek about something.
Where it comes from
From the Japanese otaku, via the Korean spelling 오덕후.
When you'd use it
Describing your own hobby, proudly.
Example
나 레고 덕후야.I'm a total Lego geek.
Careful
Positive or neutral now, though it once sounded mocking.