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1.
The plural of ridiculous, meaning exceptionally ridiculous so much so that saying ridiculous is not enough to express the ridiculousness of the situation
If your mum came up to you and bitchslapped you to put you back in your place. That would be a suitable time to say; "That is absolutely ridiculi"
by Paddy V August 08, 2006
 
2.
the plural of ridiculous
Your collection of lawn flags is most rediculi.
by w.cook October 23, 2002
 
3.
Something so ridiculous it is plural
The fact that Leonardo DiCaprio is still acting is ridiculi.
by Dustin "Fast Eddie" Jesudason April 02, 2004
 
4.
Something that is utterly ridiculous in multiple ways.
Did you see that short film on YouTube? It was ridiculi!
by Ludwayne April 10, 2006
 
5.
Plural for ridiculous. Meaning, it is so ridiculous that it has to be plural ridiculous. Ergo, ridiculi.
That is so fuckin' ridiculi, man!
by j.44 March 22, 2004
 
6.
The next step above ridiculousness, borderline absurdness with a scoop of 'reallly?!'
The line to buy beeer at the irish fest was ridiculi
by BklynHouseCat November 09, 2010