undertuck 

The dark side i mean the under side of your scrotum. Usually has hair and is right next to the taint .

Ben stop looking at my undertuck just continue licking

undertuck by _____ June 22, 2003

undertuck n' suck 

when a man tucks his erect penis between his legs and presents it to another person to suck from behind.

i was feeling frisky so i gave the woman the old undertuck n' suck

undertuck n' suck by blumpkinboychaps April 3, 2009

The Undertaker 

When you throw your partner off Hell in a Cell, and they plummet 16 feet through an announcer's table.

"I gave my GF a sexy The Undertaker last night."
"Is she okay?"

The Undertaker by ahmahm June 23, 2017

Underfucked 

sexually deprived

1. Yo look how hard she's hitting on him... she's definitely underfucked!

2. That guy is completely underfucked. He just desperately asked her out again after she told him to fuck off for the third time...

Underfucked by Stephen and friends June 26, 2010

underfuckingstand 

When you don't understand something and you are super pissed.
When you don't feel like saying "fucking understand"
When fucking understand just doesn't quite display the needed emotion.

"I don't underfuckingstand why your acting like this"

underfuckingstand by Desiree Aho January 9, 2008

underdecking 

conspiring against an authority figure to take synchronized shits underneath said authority figure's deck. Usually performed in groups of two to five people. In extreme cases, shit burritos are fashioned with paper towels and left to be found.

Oh, no. Have you seen the kids? I hope their not underdecking us again!

underdecking by underdecked July 2, 2009

Undertaker 

The Deadman, greatest wrestler of all time.

The Undertaker will bury you alive...

Undertaker by Kain May 8, 2004