undergird 

(noun) The chub that folds over one's belt.

Senor Muffintop, perhaps a larger shirt would prevent us being able to see your awesome undergird.

undergird by the_robert March 20, 2008

Undermindtm 

A clothing and accessory company started by Matthew Vargas in Morgan Hill, CA. Established in 2004, the company makes a wide range of products marketed mainly to the LGBT community.

Guy 1: That's a cute shirt man.

Guy 2: Thanks, I got it from Undermindtm, bro.

Guy 1: Let's make out.

Undermindtm by NickFirato October 19, 2011

undergrad 

a university student who has not yet received a first degree

Chris hasn't gotten a degree yet at HVCC, he's called an undergrad

undergrad by Blargg October 17, 2008

Underground Aussie Hip Hop

A non-commercialised non-profit Rap scene. A style of Australian rap music where rappers choose not to 'sell out' to Record Conpanies & instead produce their own Recordings whilst maintaining other forms of financial income.

Guy a) bro, u know any good Underground Aussie Hip Hop beats?

Guy b) yeah sus out #undergroundaussiehiphop on Instagram! Google Celebrity Pete Laan is a fan of that shit

Underground Aussie Hip Hop by Scriptures April 23, 2017

underside 

same thing as taint, gooch, etc.

it's the patch of skin between the balls and asshole. girls have one as well but it's not as funny.

it was so hot out my underwear was soaking up all the sweat from my underside.

underside by Feve July 25, 2011

Underground 

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.

The mainstream media has a tendency to steal new ideas from the underground.

Underground by Essix April 16, 2005

undernerd

an individual whose technical (usu. computer-based) competencies are notably less advanced than those of his or her peers; a nerd wannabe

The project manager thinks I'm an experienced computer programmer but I'm really just an undernerd learning everything on-the-fly.

undernerd by Scott Fairbairn July 29, 2008