Melodic Death Metal 

Possibly one of the greatest Sub-Genres in all of Heavy Metal. It combines the brutality, low guitar and bass tunings, complex and fast drumming, guttural vocals (while usually higher pitched than in normal Death Metal) with focus more on melody and harmony more than brutality. Electric guitars typically have complex rhythm, structure and riffs to them and combine low riffing, palm muting and power chords with "mini-solo" like parts that involve higher notes and odd note groupings. The genre started in the early 90's and has spanned from there. Some great/notable bands including a song are:
Carcass: Heartwork
Arch Enemy: Bury Me An Angel
In Flames: Jester's Script Transfigured
Dark Tranquility: Punish My Heaven
At The Gates: The Swarm
Dethklok: Laser Cannon Deth Sentence
Children Of Bodom: Every Time I Die
Amon Amarth: War Of The Gods
The Duskfall: Shoot It In
Callenish Circle: Suffer My Disbelief

Hey wanna go see Arch Enemy? Michael Amott is the master of Melodic Death Metal!
Melodic Death Metal bands are so talented.

Melodic Death Metal by Inster Pseudoym Here May 31, 2011

Death Metal

A form of music that developed in the mid 1980's from thrash. Possessed recorded a song entitled "Death Metal" in 1984, which would appear on their debut album Seven Churches in 1985. Other bands such as Aggression, Death, Necrophagia, Nun Slaughter, Slaughter Lord and even Slayer contributed to the movement. What defined death metal was the fact that it was basically an exaggerated form of thrash--everything from the vocals (which transformed into a mix of growling, grunting and rasping) to the drumming was made harsher and heavier than before. The music itself became somewhat anti-rhythmic, and in some cases experimental (as seen with Darkthrone's Goatlord album, or the modern technicality of Necrophagist). The first bands to really modernize the movement included Autopsy, Cannibal Corpse, the virtually unkown Necrovore, Morbid Angel, Obituary, and Ripping Corpse, among others. Death metal could range from the blood and gore horror imagery of Cannibal Corpse, to the satanic overtones of Deicide, to the political statements carried by Dying Fetus. Some criticize death metal as they feel the musicians do nothing but randomly band their instruments. Nothing could be further from the truth--listen to Morbid Angel's album Covenant, for instance, or Cannibal Corpse's Gore Obsessed, to get a better perspective on the scene.

Older Sepultura is a mix of death metal and thrash metal, commonly referred to as death thrash.

Death Metal by Goatlord April 30, 2003

The Mentalist 

American Police Procedural TV series aired on CBS, created by Bruno Heller, starring Simon Baker and Robin Tunney.

Person 1: I want to watch the best show in the world
Person 2: Hey, you should watch The Mentalist

The Mentalist by marchfallmraz November 24, 2013

Metal Gear: Rising 

An extra Metal Gear name, making Jack "Raiden" the main character. He is also known as, "The Badass Ninja Guy From 2, 3, and 4". He is a cyborg.

This game is getting all true Metal Gear fans excited, because of the shocking ending of Metal Gear 4.

MG Fan 1: DUDE, DID YOU HEAR ABOUT Metal Gear: Rising!?!?!??!?!
MG Fan 2: YEAH, I'M SO FUCKING EXCITED!!!
MG Fan 3: I came.

Metal Gear: Rising by Kyuwrath December 4, 2012

that's so metal 

something so hardcore it can only be compared to metal (the music that is)

Dude did you hear about the guy who cut off his head with a chainsaw?

Yeah man, that's so metal.

that's so metal by Jack'sCompleteLackofSurprise October 27, 2009

metal elitist 

A person who puts other metalheads down for their taste in metal. These people will generally like and worship heavier, more extreme metal (call it the "trve metal") and any band they don't listen to is "gay" or "faggy". They love to make fun of bands like Slipknot and Metallica. Basically any band that gets popular among the metal community. Usually male, these homophobic scum congregate in the YouTube comment section and almost anywhere where metal is mentioned, these guys will appear. If they say they like a band you like, they will still try to put you down by saying their demo or debut record was the best and everything else was sell-out material. If you want to get into metal, you'll have to deal with these guys. They are the worst part of metal.

Cool Metalfan: I like Metallica, Cannibal Corpse, Slayer, Death, Slipknot, and Dream Theater. I also love classic rock and some pop music when it's good. I have a very eclectic taste in music. What do you listen to?
Metal Elitist: Take absolutely no offense from this, but your musical taste is trash and you should hang yourself. You should listen to trve metal like 69Goreface.

metal elitist by kai5 May 24, 2017

Thrash Metal 

thrash kicks nu metal's little boy scrotum into its mouth

dont forget Testament, Exodus, and Megadeth

Thrash Metal by faggot licker July 8, 2003