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Bias (Choeae) 최애

In K-pop fandom English, your bias is your favorite member of a group — the one your eyes track in every performance and whose photocards you hunt down. Korean fans say choeae (최애), 'most loved.' Fans also rank an 'ultimate bias' (ult): their number one across all of K-pop.

Bias Wrecker (Chaae) 차애

The group member who keeps threatening to steal your bias's spot — every time they do something charming, your loyalty 'wrecks' a little. Korean fans call their number two the chaae (차애, 'second most loved'); 'bias wrecker' itself is an English-fandom coinage with no exact Korean equivalent. The eternal fan struggle is a bias wrecker slowly staging a coup.

Sasaeng 사생

An obsessive follower who invades an idol's private life: chasing their cars, loitering outside dorms, buying leaked flight details and phone numbers, even breaking into homes. Sasaengs are not an intense 'fan type' to aspire to — they are condemned by fandoms and by idols themselves, and their behavior has led to police involvement and public pleas from artists. The word carries a genuinely dark connotation in K-pop discourse.

Comeback 컴백

In K-pop, a comeback is any new release plus its promotion cycle — new album or single, music video, and weeks of music-show stages — even if the group last released music only a few months ago. It does not imply a return from scandal, retirement, or a long hiatus, which trips up newcomers used to the English sense. A group's year is measured in comebacks.

All-Kill 올킬

When a song hits number one on all of Korea's major domestic streaming and download charts (Melon, Genie, Bugs, and others) at the same time. Fandoms track it obsessively on release day, and a 'Certified All-Kill' (CAK) — verified by the chart aggregator iChart — is treated as proof of a domestic smash hit. It measures Korean general-public reception, which is why fandoms prize it alongside global numbers.

Daesang 대상

The grand prize — the highest honor at Korean year-end award ceremonies like MAMA, the Golden Disc Awards, and the Melon Music Awards, typically given for artist, album, or song of the year. It sits above the bonsang (본상, 'main prize') tier that multiple artists receive. Winning a first daesang is a milestone fandoms campaign for and idols often cry over on stage.