Adj. If something is so completely profound and out of line that the word ridiculous is an understatement, it is at this time that you use the word reDONculous. Usually the word is used, followed after obscene and ludicrous statements or comments. It can also be a positive attribute to add extreme emphasis.
<Dude> That party was off the hook
<Friend> Yea man I got F*ucking right ripped
<Dude> Yea, it was so friggen REDONCULOUS, i got with 3 ladies!
by Gito March 23, 2005

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A word created by someone who thought the "dick" sound in the middle of ridiculous was hilarious. Obviously "dong" sounds funny and is a synonym for "dick", thus the need for the word is apparent.
-- "Ya know, ridonculous sounds funny and all but I want something more."

--"Ri-.......cockulous?"

--"Pure comedy gold!"
by anonom77 September 10, 2009

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More ridiculous than ridiculous
You turned down a date with Jenna Jameson? That's ridonculous!
by Andrew September 26, 2003

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A modifcation of the common card game Shithead/Bastard created by Strathcylde University students. When played by proficient players, a spectator would be baffled by how ridonculous it is!
Student 1: "Up for some Ridonculous after lunch?"
Student 2: "Yeah, awesome game... it really makes no sense 'tho!"
by PYarr February 19, 2008

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A better way of saying "ridiculous". Try it out.
That was completely ridonculous.
by Psuedoname April 19, 2009

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It means "ridiculous", but it is much cooler, because "ridiculous" is so last year.
"There is no Cool Whip left."
"WHAT? That's ridonculous!"
by Squishy Wickham-Cool March 09, 2006

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Beyond the most extreme level of ridiculous. Sexy, strong, hot, interesting, athletic, fun, pretty much anything that is ridiculous, its good. Thus, it must be ridonculous.
"James is so ridonculous!"- said Judy.
"I know, he is pretty hot"-said Bianka.
by Juday April 28, 2006

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