Koreaboo
Someone who denounces their own culture, due to an unhealthy obsession with Korean culture (South). Koreaboo's are primarily fans of K-POP (Korean pop).
P1 : Oh my god! Jagoda is such a Koreaboo.
P2 : I know right?! Her obsession with Jimin and other K-pop groups and their members is just creepy!
P1 : Yeah, and she's always talking in broken Korean and using Korean slang!