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1.
(Adj.) 1) Portmanteau word formed from "fucking" & "ridiculous," describing something SO unreasonably absurd, that calling it "ridiculous" is far beyond inadequate for adjectival usage; or, 2) Through-the-looking-glass idiotic.
1) My landlord hasn't fixed the hot water for 5 days! That's just fuckdiculous!

2) That guy I REALLY hate at work used me for a reference when applying for his new job: that's fuckdiculous!
by Rusty1231 December 02, 2009
 
2.
Fucking ridiculous.
guy1: Holy Shit! did you see that Huge car wreck?

guy2: Yeah dude, that shit was fuckdiculous!
by george133 July 30, 2010
 
3.
What you say when something that is so fucking ridiculous happens that you can't make a coherent sentence and have to make up a word to describe your amazement.
"Heaven and Earth L beat Varan with 5 accounts... fuckdiculous!"
"That test just raped me... fuckdiculous!"
by Thuza March 03, 2006
 
4.
1. When something is so ridiculous, that it is beyond the point of being able to use the word ridiculous, therefore, it is fuckdiculout.
1. Damn, Asher Roth is a fuckdiculous rapper.
by i look like hell August 17, 2009
 
5.
adj.

A contraction of the words 'fucking ridiculous'. Often used when just 'ridiculous' simply isn't enough and injecting a swearword somewhere is required to convey the message properly.
Me: There is a fuckdiculous amount of people here tonight.
Friend: Too fucking right.
by TeraByte911 September 12, 2008