Excalibur Sonic 

A form of Sonic the Hedgehog that appears in the game Sonic and the Black Knight for the final boss fight. He is covered in golden armor and wields the Sacred Sword Excalibur. He doesn't use up rings, but can lose them if hit. Excalibur Sonic seems to only have a few abilities such as Dodging, Slashing, and Soul Surge

Sonic Fan: Man Excalibur Sonic is so cool!

2nd Sonic Fan: nah. Darkspine Sonic was better.

Excalibur Sonic by ChoasPunishment February 26, 2010

Excess semen 

The stuff that gets along the sides

Had to sleep in the wet spot last night bc of excess semen

Excess semen by Erin bloodgood March 2, 2019

I before E except after C 

Something like the Teletubbies, as it was created by someone high on pot at the time. It barely even works. In terms of the words that have those kinds of letters, most of them break the rule, so it is pointless. Teams have lost the Spelling Bee just because they trusted the devil of spelling, I before E except after C. Even English teachers think that this is a shitty technique.

Teacher: I before E except after C.
Me: That's useless, there are so many exceptions.
Teacher: Detention.

I before E except after C by Power476 February 27, 2021

Excellent 

*taps fingertips together*

"Excellent."

Excellent by Occifer August 20, 2008

null pointer exception

The leading reason why computer programmers commit suicide.

"If I see another null pointer exception, I'm going to go postal."

null pointer exception by Atomic Rooster September 27, 2006

Rule 34 Exception 

Rule 34A states that it is impossible to invoke Rule 34 on itself; however, as mentioned as a clause for some definitions of Rule 34, abstract concepts cannot have rule 34 invoked upon them. This makes Rule 34A entirely unnecessary as Rule 34 is an abstract concept itself and thus cannot be invoked upon itself, making Rule 34A unnecessary. However, Rule 34A could become the "No Abstract Concepts" Clause.

Guy 1: Rule 34 on Rule 34!
Guy 2: Denied, Rule 34 Exception. Rule 34 is an abstract concept and can't be Rule 34'd.

Rule 34 Exception by VERTIGO7 August 14, 2011

Excession 

something so technologically superior that it appears as magic to the viewer.

To the native peoples, the space shuttle most certainly was an excession.

Excession by Denton Troy August 18, 2004