Ridarculous 

The state of being both ridiculous and retarded.

Taking selfies repeatedly is absolutely ridarculous.

Ridarculous by Interstatetrash February 28, 2019

RIDORKULOUS 

an effective, sometimes necessary combination of the words "ridiculous" and "dork"

ie: to be so damn dorky it's ab-sa-smurfly-ridiculously dorky beyond measure

"You read all the Harry Potter books in a single weekend?"

"Yes! They were freakin awesome!"

"you are complete RIDORKULOUS!"

RIDORKULOUS by JAMAAL XY September 2, 2011

Radaculous 

When things are getting so rad that the levels of rad are surpassing the levels of gnar. Resulting in Radaculous (typically a term used amongst skaters)

Dude i can't believe you just ollied that gap, that was radaculous

Radaculous by jamestown09 August 18, 2016

Retarculous 

Retarculous was originally coined by To Catch a Predator decoy, Emily Bicks. It is a conjunction of 'Retarded' and 'Ridiculous.' It is used to describe something that is extremely dumb, stupid, etc.

"Trying to use a trash bag as a parachute is absolutely retarculous."

Retarculous by Briggs Bennigan January 12, 2019

forking ridiculous 

The increasing number of cryptocurrency forks where an existing cryptocurrency code is splits in two resulting in a newer and older version.

Hey, did you hear that another bitcoin fork is coming? Yeah, it's getting forking ridiculous.

forking ridiculous by Uncle Buck, Tennessee June 2, 2018

ridonculous 

Functionally similar to the word "ridiculous," this word is often used in its place for extra emphasis.

There's a ridonculous amount of cheddar cheese stuck in the printer.

ridonculous by 755coop3 April 23, 2004

ridonculous 

(adjective) - ridiculous

Roald Dahl's BFG uses this word. This may be the origin of the word. First published in 1982.

Some of the other origins I've seen suggested are ridonculous.

ridonculous by doof0000 June 16, 2011