Brutal

[Hina Muqadas]

Like a brute; savage; cruel; inhuman; brutish; unfeeling;
merciless; gross; as, brutal manners.

[Justin Bieber]

The American Slang word for something that is very metal.
Taken by other [scenes] such as Hardcore, and Scene, it was originally used my [Metalheads], and should stay [that way].

[Luis Fok]

Of or relating to the heaviest of death metal. Many people abuse the term and use it for reference to emo/scene [grindcore] bands. Most often, bands with [technicality] arent really brutal due to an emphasis on talent and complicated riffs/structuring rather then heavyness, eg. [Necrophagist].