A genre of music that started long ago from the punk movement. Eventually, it died down and now hardcore has become heavily confused with overrated untalented whiny-ass screamo/emo/trendXcore bands such as Atreyu, Norma Jean, and pretty much any other band worshipped by "scenesters"
The birth of REAL hardcore as told by Henry Rollins: That's when that "fuck yeah" guy got a guitar. You know, that guy in the 7-Eleven parking lot who'll look at you and be all like "What the fuck you lookin' at?" That's his band.

FAKE hardcore: Depressing poetry + eyeliner + nail polish + girl's jeans + hair covering one eye + screaming
by Oi! October 23, 2005
Get the Hardcore mug.
A variety of punk rock originating in the US in the early '80s. It involves shouted vocals (as opposed to growled) with a fast, aggressive tempo and a guitar sound featuring quick chord changes. Minor Threat, Bad Brains, SSD, and the Circle Jerks are known for this style. By 1986, a new style of hardcore came out of the New York scene. The NYHC scene added mosh breakdowns to mix, but the music retained its fast aggressive nature. This spawned the youth crew scene, a positive straight edge scene featuring such bands as Youth of Today, Chain of Strength, and the Gorilla Biscuits. Judge is a notable band from this era that added some metal style to their riffs. In the 90s hardcore took many different direction, bands like Lifetime and Turning Point took the late '80s sound (particularly the melodic approach pioneered by the Gorilla Biscuits) and added a softer sung vocals and the lyrical approach of DC bands like the Rites of Spring and Dag Nasty. Other bands like Earth Crisis mixed hardcore with death metal growls and slow brutal guitars. Today many bands continue to play the early '80s fast, thrashy style as well as the so-called '88 or youth crew style, while still others have taken the sound of bands like Earth Crisis farther and mixed in more metal elements such as double bass drumming. Hardcore refers to all of these styles, though metalcore is best used to identify bands like Throwdown or Converge (who don't really sound anything alike but both mix metal and hardcore). Finally, some bands like Bane, With Honor, and Comeback Kid are mixing positive youth crew style hardcore with more complex metal riffing without straying into the beatdown, double bass drumming style of metalcore. People talking about old-school hardcore should be referring to one of the hardcore sounds that developed in the '80s, regardless of when the band formed.
early '80s: Minor Threat, Government Issue, Black Flag, SSD, Jerry's Kids, Youth Brigade, Bad Brains, Agnostic Front, JFA

late '80s/'88 style: Youth of Today, Cro-Mags, Uniform Choice, Chain of Strength, Bold, Gorilla Biscuits, early Turning Point

emo-influenced hardcore: Lifetime, Falling Forward, later Turning Point

early metalcore: Earth Crisis, Strife

modern metalcore: Throwdown, Unearth, Adamantium, Converge

modern youth crew/old-school bands: Ten Yard Fight, In My Eyes, Champion, Give Up the Ghost (formerly called American Nightmare), Black Sheep Squadron, the Spark, Trial

by Robert Murdoch August 13, 2006
Get the hardcore mug.
A genre of porn, usually involving both men and women, banging each other. Usually looks like a bunch of apes in mating season. A related offshoot of this is bukkake.

This title was based off the definition of hardcore as something that is intense or very strong.
OMG! HARDCORE PORN!

Hardcore porn involves ugly stick-women being boned until they break apart.

man 1 : what kind of porn is that?
man 2 : It's hardcore! Lots of endless fucking action!
by withoutname July 28, 2005
Get the hardcore mug.
Someone who rides their bike all the way to the store just to get a can of Special Pepsi.
by Dr Meezy December 15, 2010
Get the Hardcore mug.
in the music sense, a form of underground music that takes music to extremes. started in the early 80`s with bands like minor threat and black flag. i like to call this classic hardcore. then in the late 80`s there were many hardline, "positive" straightedge bands like chain of strength and gorilla biscuits. i like to call this oldchool hardcore. then in the early 90`s straigtedge became rediculous, and the bands got more metallic, with bands like Earth Crisis and Strife. I just call this hardcore. Then all throughout the 90s there were those hardcore bands with the scary, grindy sound, like converge, dillenger escape plan, or discordence axis. Then there were some bands like 10 yard fight who tried to re-create the hardcore sound of the late 80`s, a few were ok but most really sucked. This developed into what some people call "posi" hardcore. These days, you have your choice of shitty mosh hardcore, or screamo, or emo-core. Now hardcore is just a melting pot of all the sounds in one. its one big emotional, positive/negative, noisy vomit. its ok i guess. i liked how it was better in the late 90s early 00s.
quality hardcore bands: converge, bane, shai hulud, american nightmare, minor threat, gorilla biscuits, ten yard fight, joshua fit for battle, the now, 18 visions, forstella ford, hot cross, pg.99, discordence axis
by mike December 24, 2003
Get the hardcore mug.
short for hardcore punk,a genre of music derived from punk rock,but faster and heavier.
there's a difference between metalcore and hardcore. metalcore bands are Norma Jean,Converge,Botch,Between the Buried and Me,As I Lay Dying, Unearth,and Killswitch Engage.
Hardcore bands sing generally about anarchism,capitalism,the government,war,the hardcore lifestyle,and being straight edge;not all hardcore band are straightedgers.
Hardcore bands:circle jerks,ss decontrol,gbh,black flag,minor threat,bad brains,dead kennedys,7 seconds,gang green,beastie boys (early),negative fx,discharge,anti-nowhere league,exploited,u.s. chaos,GISM,chaos uk,picture frame seduction,and many more
"I fuckin love G.I.S.M, man...hardcore punk til i Die."
by goose86 September 18, 2007
Get the hardcore mug.