Username 666 

A video where a person in japan named nana825763 goes to his youtube URL bar and adds /666 to his url bar and then refreshes several times until a video by the name of none.avi starts to play while the background changes to a red bumpy pattern with im guessing burn marks all over them and the youtube logo turns into a burnt and of course red mess and after a while message boxes with red x symbols start to show up with no text just empty buttons comments and titles and if you try to shut down or restart your computer it wont let you and will just play the windows ding sound and in the end a hand will grab you.

Someone : I just saw the username 666 video... im scared!

Someone else : Dont worry dude its fake

Username 666 by srcthesrc May 29, 2022

ISO-666

A fictional standards document which interchangeable "brutal death metal" bands refer to when writing their songs.

The new Yattering album is definitely ISO-666 compliant.

ISO-666 by Dave July 9, 2004

1800-666 

the devil's phone number, just call 1800-666 and get hell, (calculator trick 1800-666=1134 appears as "hell" upside-down) also 1800-1134=666. yeah creeps me out too.

I tried calling the devil's phone number 1800-666 but it was busy, hmm. I'll try later.

1800-666 by the clam man June 25, 2009

Destroyer 666 

Badass black metal band from Australia

Destroyer 666 is better than Cradle of Filth any day.

Destroyer 666 by Poccolus December 3, 2003

rule 666

Rule 666 is the definition and embodiment of the devil, and any activities involving satanism.
When applied, all other religious actions will be nullified, and only the devil's worship will be available.

(How it is used.)
Priest: Sir, this is a Catholic Church, please pray and respect our religion.
Random Man: Rule 666 man.
Priest: ALL HAIL THE DEVIL.

rule 666 by FreddyFuckBoy1987 January 8, 2016

Rule 666-B 

You've lost the GAME. No exceptions.

Rules Of The Internet.

A:Hey what's up?
B:Rule 666-B
*A leaves*

Rule 666-B by Shadow53x May 25, 2010

rule 666

The rule that most women desire men with these three qualities:
- 6 feet tall
- 6 figure income
- 6 pack abs

One, two, or all three 6s make it progressively easier for a man to frequently attract and keep the company of women. Lacking all three will make it sufficiently difficult for a man to attract women.

Jane: Does he pass rule 666?

Amy: Of course, but there's so much more to him.

Jane: Like what?

Amy: I mean, he's funny and like smart.

Jane: Whatever.

rule 666 by goyo May 9, 2017