A Koreaboo is a person who indulges in the global phenomenon known as Hallyu or the Korean wave. The Korean wave refers to the significantly increased popularity of South Korean culture around the world since the 21st century, especially among those in Generation Y/the Net Generation.

The largest contributor to Hallyu is the Korean entertainment industry with the rapid growth of Korean dramas, movies, and popular music since the start of the 21st century.
Hey, isn't that BoA Kwon? She turned me into a koreaboo!
by Koreaboo May 13, 2010
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Like a weeaboo (someone obsessed with Japan, see wapanese), but with Korea, as Korea will soon be the new Japan, with it's K-Pop (like Rain aka Bi), K-Dramas (korean Dramas) manhwa (Korean manga) and awesomeness. Cue the fanboys/girls.
Wow, Shaniqua is really into K-Pop. She's kind of a koreaboo; she's even started to learn Korean from all the K-dramas she watches.
by Suzy Lee November 18, 2007
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Like a weaboo, except Koreaboos obsess over Korean culture and music, most notably Korean pop or K-pop.
"Wow look at Nate listening to 2NE1 again"
"God damn, he's such a Koreaboo"
by BocciasMofeg January 05, 2015
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Usually white kpop (Korean pop) fans. They become obsessed with the Korean culture and try to look or change their ethnicity to Korean, or eastern Asian in general. (AKA ULZZANG WITHOUT RESPECTING THEIR OWN CULTURE)

Note that not all (majority of) kpop fans are like this.
Army/Any kpop fan: OmG sArAnGhAe jUnGkOoK oPpa
Normal Army: Can you shut up, you KOREABOO.
by Kim Taehyung's bear June 06, 2018
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A koreaboo is someone who is obsessed with the korean culture. They LOVE kpop or k-drama.
by omgilovedogs September 15, 2018
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Ridiculously annoying white boys or girls who are obsessed with Korea and their culture. Usually want to become k-pop artists and learn Korean with rosetta stone.
Todd-"Hey, Have you seen Adrianna? Shes such a koreaboo!"
Jerry-"Yea! I bet she learns korean with rosetta stone"
by Jaisomething May 13, 2016
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Koreanboo's are the worst. They put "eu" at the end of everything, for example: Faceu
Koreaboo's are the korean verson of Weaboo.
" Yo, I heard Emily became a koreaboo. Its totally uncool! "
by SOPE-y September 22, 2019
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