Undergrundle

the area starting from the anus and for women, extends to the vaginal opening; for men it extends to the base of the testicles.

She was giving me a professional with the full undergrundle scoop and rub.

Did you lick the undergrundle?

Undergrundle by dielfactor January 5, 2011

Undergrounder 

deep deep hip hop sounds and music. Straight hardcore conscious rap music.

Artist like Kenn Star, Supastition, Freddie Foxxx, krumbsnatcha, Teflon,Akrobatik, Kurious, q-unique.. make undergrounder music cuz.

The "undergrounder", the better {Propz to Clara (Flawless}

Undergrounder by SalamSM November 8, 2007

Undergrunge

The nasty, sweaty, greasy amalgam that forms in a males' taint and grundle region. Akin to a cheesy smegma. The aromas can be quite breathtaking. Typically induced from heat and general uncleanliness.

I went down to suck his cock but the smell of his undergrunge was like a ripe Stilton. I had to hold my breath and not breath.

Undergrunge by Eaton Holgoode April 26, 2017

undergrounder 

a zit that is deep, with no white head, painful, and bulbous, it takes a long time to head up and is generally super annoying.

dude, i got a huge undergrounder on my forehead!

undergrounder by prot1a5 September 21, 2005

undergrinder

Ein Typ der behauptet in League of Legends Platin Wissen zu besitzen und alles über das Game weiß.

Das ist ja voll der undergrinder.
Der hat Platin Wissen wie ein undergrinder kappa

undergrinder by Gulsfire January 4, 2017

sma_undergroundnews 

A student run Sarasota Military Academy fan account that posts funny things about the school in an unofficial newsletter

All the cadets love sma_undergroundnews, but for some reason staff hates it.

sma_undergroundnews by Mykaylo kostin April 3, 2023