Radonkulus 

root word radonk, something so ridiculous and unbelievable that a word outside the standard lexicon must represent it. Something as ridiculous as the word "radonkulus" sounds rolling off the tip of your tongue.

Dubya is radonkulus.

Radonkulus by l. cohen, k.smith June 8, 2007

Radonkulus 

When something is beyond ridiculus.

This is really Radonkulus.

Radonkulus by Lucky Ryan April 5, 2006

ridonkulous 

Used when an event or action is way beyond "ridiculous". Extremely unbelievable.

Football Fan 1: Did you see that hit?
Football Fan 2: That shit was ridonkulous...

ridonkulous by m.a. santiago October 7, 2004

radonkulous 

Slang word for ridiculous.

Person A: HOLY SHIT I BLEW MY LOAD ALL OVER MY KEYBOARD
Peron B: HHAHA WTF THAT'S RADONKULOUS!

radonkulous by Stephen McMahon December 26, 2004

ridonkulously 

(adv.) ri·donku·lous·ly (see ridonkulous).

Origins: the adjective root, ridonkulous, evolved from the ithyphallic wordplay of replacing the "dic{k}" sound in ri·dic·u·lous with "dong" (the "g" becoming silent). The spelling of the root using a "k" instead of a "c" results from the common misconception that the word donkey is somehow related.

Ridonkulously is the adverb form of ridonkulous.

ridonkulously by Five_Fingers November 12, 2010

Epic Legit Uber Redonkulous Noob Pwnage 

Also known as "the grade eight word", is the epic combination of five non-dictionary words, plus the optional prefix of "Epic" that are used quite frequently by people in today's society, more often teenagers. It's nickname ("The Grade Eight Word") originates from the location it was coined, a grade eight classroom. When someone thoroughly and utterly triumphs over the competition, this can be referred to as Epic Legit Uber Redonkulous Noob Pwnage.

We totally owned the other team! this has been a severe case of Epic Legit Uber Redonkulous Noob Pwnage.

Epic Legit Uber Redonkulous Noob Pwnage by orly?yarly! May 2, 2010

Ridonkulous 

Deserving or inspiring ridicule to the highest degree.

The number of dead hookers in the apartment was ridonkulous.

Ridonkulous by Aaron S. March 1, 2004