The Tenth Dentist 

Someone who disagrees with something that is widely accepted by others, seemingly for no reason. The word comes from toothpaste advertisements, which often claim that "Nine out of ten dentists" recommend using their brand of toothpaste.

Mark: "I was making plans with the boys, but Adam kept arguing about all of our plans even though everyone else was on board."

Craig: "Man, the tenth dentist really had to go and ruin the fun for everyone, huh?"

The Tenth Dentist by dKoschei August 15, 2019

the tenth doctor

The tenth regeneration of the time lord called the doctor on Doctor Who

The tenth doctor is my favorite!

the tenth doctor by Gryffindor_girl_77 June 26, 2016

the tenth nazgul 

ME! Lord of the last alliance!

The tenth nazgul is god!

the tenth nazgul by jimmy November 9, 2004

The Tenth Man 

The Tenth Man is the fucking retarded person in a CS:GO competitive queue who when sees the "Accept" button pop up to go into the match does not click the accept button and just lets the timer go and make every have to re-queue for the match, and you just want to fucking stomp their grape shaped head in because you have been in this queue for 7 minutes now and every time the accept button comes up The Tenth Man will just be sitting outside in his lawn chair with his crusty ass laptop sipping his fucking Martini. This is the most toxic person in CS:GO you will ever meet. If you meet someone who does this you must destroy them and dispose of their body in the nearest water bed.

Friend: Let's play some CS:GO (counter strike global offensive)
Me: Sure.

*accept button pops up*
The Tenth Man: I'm about to ruin this man's whole career

The Tenth Man by WIld_Willy January 8, 2020

to the tenth power 

Added to a word or phrase to emphasize the intensity.

sharks are awesome.

sharks with frickin' laser beams attached to their heads are awesome to the tenth power.

to the tenth power by MikeyRocks.net September 19, 2009

Fifty-three thousand to the minus tenth 

A very difficult mathematical operation, which gives as a result 5.7179625e-48, which is a very complex number. A dumb mathematician said that this number is also the result of 1 to the second. That man was murdered soon after.

fifty-three thousand to the minus tenth is equal to 1 to the second.

Fifty-three thousand to the minus tenth by Myhuoseisadragon March 3, 2023

Shit the Tent 

Defecating inside your sleeping arrangement, accidentally or intentionally.

Mason woke up and realized he had soiled himself. After removing his shorts, stepping in them and stumbling around, he realized he had shit the tent and fled into the woods, completely naked.

Shit the Tent by Atomics May 29, 2013