Ridaculous 

Adjective: Amusingly ridiculous, the best, simply outstanding.

Dat hoe's ass is ridaculous, son!

Yo, I just smoked a blunt and I'm feelin' ridaculous.

Ridaculous by Dan February 26, 2004

Ridicurous 

How DONNA CHENGstein mispronounced 'ridiculous' on the greatest sitcom ever, Seinfeld. It wasn't Elaine and you should be ashamed of yourself for thinking so.

Donna: This is really getting ridicurous!
Jerry: ..........Did you say 'ridicurous'?
Donna: Ridiculous!
jerry: I thought you said... 'ridicurous'...

Ridicurous by SoCrispy March 6, 2009

rediculous

The alarmingly common misspelling of ridiculous.

Joe: This game is rediculous!

Bob: Your spelling is ridiculous.

rediculous by Dassh July 25, 2004

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

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