math rock 

Math rock is a very loosely defined genre of music. The term is hard to describe and often misused. However, one good way to describe it is as a style of rock that has almost no trace of folk or blues, which is the traditional definition of rock. Instead, the sound may have a loose, jazzy-like and spontaneous feeling, in contrast to the direct and compelling sound of blues and folk. At the same time however, the music is also calculated, and instrumental riffs are often based on timed formulas. For example, a guitar riff may repeat a sequence of five quarter-notes over 4/4 time signature, thus giving the listener an overall feeling of chaos, in spite of the riffs rigid structure.

The genre is gaining more influence, especially in the Los Angeles area. Bands like The Blood Brothers, Plot to Blow Up the Eiffel Tower, and An Albatross are some of the most famous math rock bands.

math rock by Tyrone Jiggadubz September 1, 2005

hit rock bottom 

When one's sexual desires have gotten so out of control that you end up slapping the arse of a statue.

Doc. My sexual urges have gotten so bad that i slapped the arsingtons of a statue whilst walking round London. I hit rock bottom.

hit rock bottom by ShittierJokes October 19, 2017

Progressive Rock 

Greatly under-aprreciated form of art. Adds elements of jazz, classical and avant-grade forms of music to come up with something new and original.

Dude that Yes band kicks immeasurable amounts of ass.

Dream Theatre are gods.

Frank Zappa is one fo the few musical genious' of our time.

Progressive Rock by Mr. T December 15, 2003

Trip rock 

Trip rock is a form of rock that takes you on a journey musically or psychologically.It is basically a fusion of Psychedelic rock with late 90's electronica with a dense,dark sound.

Trip rock http://en.wikipedia.org/wiki/Trip_rock

Trip rock by Scratchy7929 February 5, 2009

Ghetto Rock 

Rock/blues music that is so fucking awesome, that you wanna drive through the ghetto in a dirty '94 Ford Escort, blasting it through the broken back windshield out of a shitty half broken boom box.

"The Big Come Up" by the Black Keys is fucking ghetto rock dude"
"I know I know"

Ghetto Rock by TedDansonSucks November 9, 2013

hubba rock

crack rock, cocaine.

yo break me off a piece of that hubba rock.

hubba rock by me September 24, 2004

Millenial Classic Rock 

A sub-genre of alternative and punk rock music typically ranging from the mid-to-early 90's to the mid-to-early 00's. This actual tasteful music is generally nostalgic to the Millenial generation as would a Baby Boomer or a Generation X person is to real Classic Rock. Music that typically belongs to this genre would be songs by Green Day, Blink-182, Linkin Park, Seether, Foo Fighters, Breaking Benjamin, and Three Days Grace.

At a party...
Man 1: Someone put some good music on!
Man 2: I'll put my iPhone on and play some MCR.
Man 1: MCR?
Man 2: Millenial Classic Rock. plays a song by Smash Mouth.
Woman: Hey! What's this crap? I haven't heard this song since I was in like, 2nd grade when I was a loser. It's not pump-me-up music ya know? Put some Kanye West on or Nicki Minaj.
Man 2: I hate this generation's music.

Millenial Classic Rock by block bros. April 5, 2017