Undercutter 

Someone who tries to steal your business by offering the same service/product for less money.

Javi Rox: Yo, I got these cheeseburgers! I sell them to you for a dollar!
Jay Nyce: I got those same cheesburgers for 50 cent!
Javi Rox: I hate that motherfuckin undercutter.

Undercutter by Domexicano March 17, 2005

Undercutter 

If you are male, it refers to one of your testicles, usually the itchest or sorest. If you are female then it refers to one of your breasts, usually the smaller or most sensitive one. Using it in plural refers to both organs / glands.

"Don't even try to kick me in my undercutters, beyatch!" or "My right undercutter is really sensitive today! Don't fondle it so hard!"

Undercutter by TBone December 28, 2003

under-cutter slutter 

A man or woman who sees you working the room, getting your flirt on, and remains in the background until the precise moment when BAM!-you have used up all your slutty powers and are drained and then they move in and take it to the next level-out slutting you.

Did you see Gina jump up on the bar after I did? OMG that strip tease was straight up under-cutter slutter.

under-cutter slutter by Scorpio Jillian December 27, 2007

Undergutters

Underground hip hop, especially if it can't be found in any stores.

"I be bumpin' straight undergutters."

Undergutters by quatraine3 August 21, 2009

Undercunterated 

When you underestimate how much of a cunt someone is

Wow, I undercunterated her!

How did you undercunterate that bitch?!

Undercunterated by Daker June 16, 2015

undercumference

The distance from your clenched butthole to the edge of your ball sac

She was not impressed with my undercumference as it was coated with from under cheese

undercumference by Tranquist1899 September 11, 2015

underculture 

A segment of modern culture that exists outside, or underneath, the mainstream. Often involved in illicit behavior and/or illegal activities.

“Are we still pretending the adrenochrome underculture doesn’t exist after all the recent revelations about Epstein Island 🌴.”

underculture by Unclean Waters July 25, 2020