"corefags" is a term for some fans or bands of heavy metal/underground music scene.

Musician description: Their music characterized by frequently usage of breakdowns and bass drop technique. Genres like Metalcore, some Deathcore and Post-Hardcore are considered as corefags by some fans.

People description: or also can be called "scene kids", is a one of the cultural term on underground music scene. they are the people who (not always) don't know how to hardcore dance, but instead, flail their arms and legs around, hoping to hit/hurt someone in their fit during the "best part of the song". They also separate themselves from "true" metalheads because of their absolute ignorance and arrogance when it comes to other, real metal musics. They also believe that, if a band doesn't abuse and overuse breakdowns and bass drops, they aren't good/worthy to listen to.