Dangerverse 

The Alternate Universe worlds in which Harry Potter is raised by Remus Lupin, Danger Granger Lupin, Aletha Freeman Black, and Sirius. His siblings and pack-mates are as follows: Draco Reggie Black, Hermione 'Neenie' Granger Lupin, Meghan Lily Black, Luna Lovegood, Ron and Ginny Weasley, and Neville Longbottom. It is characterized by a mostly wonderful, occasionally evil style in which there are happy endings, cute songfics, intellectual intrigue, and epic battles. Oh, and DB/LL as well as MB/NL.

The Dangerverse has a story where one version of Harry Potter sings Christmas songs while another fights Voldemort. Don't you just love crossover fics?

Dangerverse by Bibliofool22 March 23, 2010

Dangerverse 

An increasingly popular name for the post-apocalyptic world in which the events of the My Chemical Romance 2010 album "Danger Days: The True Lives Of The Fabulous Killjoys" take place. The year is 2019 or thereabouts, and an unknown, but likely nuclear disaster, has turned the world into a place similar to the setting of the Fallout series.
Term never officially used by the band, but coined by a fan in a popular tumblr blog very early in the album's history.

There's been Dangerverse fanfiction ever since the first Danger Days single was released, but it's really ballooned after the full album release.

Dangerverse by El Oquent December 20, 2010

Rex Dangervest 

The term used by people who talk about a Godly Being named "Rex Dangervest"

Rex dangervest is Thicc

Rex Dangervest by Rex Dangervest April 11, 2019

Rex Dangervest 

Emmet Brickowski from the future. He's a real jerk. An impostor.

Mr. Peabody: "He's you but from another timeline."
Emmet: (gasps)
Rex Dangervest: "You are so naïve."

Rex Dangervest by I don't say "bleh bleh-bleh"! May 5, 2020

Rex Dangervest 

Radical

Emmet
Xtreme.

A handsome guy with chiseled features hidden under baby fat, Someone that’s more damn mature then Emmet Brickowski.

Hey guys, it’s Rex Dangervest!

Emmet: Why is he so better than me?

Rex Dangervest by Gladdy173 January 7, 2020