underground is like deeper beats, lyrics and soul to a song - commercial is like what get's played on the radio and is marketed to the masses - Britney's mainstream, Eminem is mainstream - even though anyone can make underground music they don't coz it doesn't sell like commercial stuff - underground IS deeper, more hardcore, more controversial, or whatever...

Does NOT have to be unknown, it can also be a rapper that was underground yet kept the style and became extremely popular and well-selling commercial material

those fucking annoying pimples that are like a solid mound protruding from your head, hurt like hell, yet don't have a head so you can't deal with them

A twenty-first century marketing buzz word used to convince teens that the over-hyped, over-produced, corporate-friendly crap they listen to on the radio station everday is actually "unique, hip, different" or that they somehow aren't part of a target market in which they all obediently buy the same crap.

Un•der•ground (un’der ground’), n., adj.

1) A genre in music and other forms of media intended for an elite audience, that is often characterized by its high levels of originality and experimentation, and does not conform to typical standards, trends, or hypes as set by the popular mainstream media.

A movement or a group of people related to music, who do it not for the money, the notoriety or the fame, but for the love. They don’t promote, because they don’t crave popularity. They also don’t need to tell everyone about how underground they are because they aren’t really interested in labelling their own movement, they just do it, and if people enjoy it, great.

Art, opinion or organization that exists outside of mainstream society or culture. Also known as "independent" or sometimes "counter-culture".

The London railway system. Also called the Metro or Tube.

The act of connecting with the Earth through dancing barefoot to underground electronic music such as house music or techno, at an outdoor electronic music festival or gathering. These particular "roots E.D.M." genres of House and Techno use a 4/4 beat, a.k.a. "4 on the floor," the exact rhythms our ancestors produced through primitive percussion instruments created from trees and earth clay, which they used to dance barefoot upon the earth in celebration, worship, prayer and to connect with themselves, each other and Nature. Our ancestors did this for tens of thousands of years, and many indigenous communities around the world still do this today. See shamanism as well.

Derivative of the word "grounding" or "earthing" which has been trending since 2015, describing the act of standing or walking barefoot on the earth to absorb ions, connecting electrically to the earth; reducing inflammation and improving health.

*First coined/introduced by Elektrik Fantasy Festival in Miami.