Metcal 

Slang for doing a line of drugs. a way to say how much you are consuming, or do without others knowing what you are actually talking about. How much you did consume

Hey that problem is easy to fix, that will only take 5 lines of metcal. That was a hard thing to fix it took 25 lines of metcal code.

Metcal by Ral_phie January 6, 2010

Trip Metal 

Trip Metal is a term that was conceived by John Olson of the band Wolf Eyes to categorize the band’s sound which originated in a meme that helped popularize the term. The genre covers a wide variety of what once constituted the noise music scene. An annual Trip Metal Fest, curated by the members of Wolf Eyes, showcases many of the acts that fall under the genre which takes place in Detroit and in recent years has spread to other cities in the Midwest.

John Olsen (sic) christened the phrase when he tweeted a photo of a wolf—fangs bared—with a declaration that his band embodied "Trip Metal."—ostensibly to highlight both the psychedelia and the aggression of his band's sound. -via Thump

Trip Metal by Keith Courage May 31, 2018

my shiny metal ass 

An expression that the robot Bender from the TV show Futurama says frequently.

Bender is always saying my shiny metal ass!

my shiny metal ass by Starchylde May 29, 2016

History Death Metal 

History Death Metal is an offshoot form of Death Metal that focuses on the Dead, Their History, Culture, Religion & More. It is similar to Death Metal yet uses exotic musical scales of the world and drums/cymbals of the world making the Drum Set Of The Dead.

History Death Metal is the best offshoot of Death Metal ever created! Dig Up All The Dead of Every Civilization on the Planet.

History Death Metal by UnHeaven Kevin October 26, 2019

American Death Metal

American Death Metal aka United States Death Metal USDM is comprised of Death Metal bands there were originally formed in the United States of America many of which were influenced by Metal from other nations of the world. Death metal is an extreme subgenre of heavy metal music. It typically employs heavily distorted guitars, tremolo picking, deep growling vocals, blast beat drumming, minor keys or atonality, and complex song structures with multiple tempo changes.

American Death Metal has lots of bands that really have pushed the envelope in the Death Metal World! Hail USDM!

American Death Metal by UnHeaven Kevin December 20, 2019

United States Death Metal

United States Death Metal is American Death Metal. USDM aka American Death Metal the national initialism of USA Death Metal. American Death Metal aka United States Death Metal USDM is comprised of Death Metal bands there were originally formed in the United States of America many of which were influenced by Metal from other nations of the world. Death metal is an extreme subgenre of heavy metal music. It typically employs heavily distorted guitars, tremolo picking, deep growling vocals, blast beat drumming, minor keys or atonality, and complex song structures with multiple tempo changes.

Suffocation, Cannibal Corpse, Obituary & More are 🇺🇸 United States Death Metal Bands

United States Death Metal by UnHeaven Kevin December 20, 2019

Argent Metal 

A sub-genre of music popularized by the later entries in the DOOM series of videogames. Relies heavily on guitars and guitar-like instruments. Also know for it's occasional use of non-instruments edited to sound like one. One could correctly describe it as "Audio Violence".

Dude 1: What's your favorite music genre?
Dude 2: Easily Argent metal. You need to try it out. It's great.

Argent Metal by ChoccyMilkConnoisseur June 14, 2021