undercrown 

In porn, the camera shot where all you see is the dude's asshole and balls slapping against whoever they are fucking

Man: I'm just trying to get off, I don't want to see this undercrown shot in my vaseline stroke.

undercrown by baller722 November 26, 2013

tucked like underarmor 

To conceal carry a firearm at all times.

Friend: bro, I’m nervous what happens if somebody tries to rob us?

Friend: don’t worry, I got that heater tucked like underarmor.

tucked like underarmor by AlwaysTucked July 31, 2021

undertale 

Undertale is a game created by indie developer, Toby Fox. In it, you can choose to either spare every entity that appears before you, or slaughter them mercilessly. It has multiple endings, a fantastic soundtrack, and although it doesn't have the best graphics, its story, wittiness, and humor make it a very enjoyable game.

Undertale gave me big feels.

undertale by killermoobs October 14, 2016

Undercover Thug 

-Its a person that is bad or do bad things but to parents or any one that dont know the person is good or thinks is good
- Someone that most know a thug but others that dont believe it or dont know it
- Someone that looks innocent but does bad things

Undercover Thug- A wolf with sheep clothing
Undercover Thug- My son or daughter not a bad person but....
Undercover Thug- Opposite of a undercover cop
Undercover Thug- Someone that do bad things or live thug life but almost never get caught doing them.
(This could mean the same for undercover gangsta, or gangster to)
Undercover Thug- Unusual Suspect

Undercover Thug by tnst December 19, 2014

I understand that, but 

Used in exasperation during an argument, with a notable impatience intended to slightly patronize the other party while furthering the speaker's other reasons.

Look, I didn't mean to shoot Marvin in the face.

I understand that, but that doesn't change the fact he's dead.

I understand that, but by Nobody0000 January 20, 2011

6 feet under 

Another way to say you will be killed, 6 feet under is the depth of burying someone.

"Stop doing this or you will be 6 feet under!"

6 feet under by Undercoveragent11 May 13, 2019

underthink 

Verb: to think or analyze inadequately
(third-person singular simple present 'underthinks'; present participle 'underthinking'; simple past and past participle 'underthought' – informal 'underthunk' ) \ antonym – 'overthink'

It's a trick question; don't underthink it.

underthink by ΔиłĦ☼иצ ߀₡ʞ November 19, 2010