redonckulous 

something so unbelievable true that it cannot possibly be true

It's redonckulous that Obama praised Magic Johnson's "infectous enthusiasm".

redonckulous by fredhead01 January 27, 2010

recockulous 

1. Synonym of 'Ridiculous'.
2. Extremely ridiculous.

Word coined by 'Loveline' radio show host Adam Carolla after show producers recieved complaints that he was using the word "Dick" on the air. Producers suggested he use the word "Cock" instead. Carolla, mockingly concerned about overemphasizing the "dic" syllable in ridiculous, began saying "Recockulous" instead.

The idea of Dr. Drew Pinsky entering the World's Strongest Man competition is recockulous.

recockulous by Blatantly Asinine July 15, 2003

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

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

redunkulous 

Redunkulous- adj. the second higest degree of ridiculous. When something is amazing/ shocking/ surprising/ unbelievable etc. beyond normal amazement, but not completly unbeleivable. Something ouright crazy would use the higest degree of ridiculous (see redonkulous).

"Holy Shit that headshot was redunkolous"
"That bitch Tracy dumped me on valentines day. This is totaly redunkulous!"
"Jimmy forgot the beer!? This is completely redunkulous."

redunkulous by G-rammar September 28, 2005

Redneckulous 

Absolutely redneck concept.

Those Duck Dynasty bookends are absolutely redneckulous.

Redneckulous by FireflyWhovian December 23, 2013

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