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5.
Ridiculousness is show hosted by Rob Dyrdek on MTV. It is basically a video show about falls and accidents people have had. There is a lot of making fun, but the videos are extremely funny. The permanent host(s) is Rob Dyrdek, Chanel West Coast, and Sterling. There are also celebrities that are guests.
Bobby Did you watch Ridiculousness last night?
Andrew No, but I heard someone fell off their bike and fell on a rail!
Bobby Yeah, it was hilarious!
by Alter Ego September 28, 2012
 
1.
A show where Rob Dyrdek reviews videos previously shown on Daniel Tosh's show Tosh.0.
Matt- "Hey Joe, did you watch Ridiculousness last night?"
Joe- "No I didn't. But I watch Tosh.0 so I've already seen all of the videos that Rob shows. Don't be a tool Matt."
by insaner338 September 15, 2011
 
2.
Something that is obviously a rip-off. So much of a rip-off that it's beyond ridiculous, it's absolutely ridiculousness.
Did you see that video show that Rob Dyrdek has now? Yeah, I saw it... it was ridiculousness.
by twillia3 October 01, 2011
 
3.
1. Something so absurd, stupid, ridiculous, and inaproppriate that it cannot in any form be taken seriosuly.

2. Geroge W Bush

3. Bear Strearns Stock Price
Eg 1
Guy 1: I think the US Stock Market is booming
Guy 2: Geez, your a nob because that is total Ridiculousness!

Eg 2
Guy 1: Hey dude you suck
Guy 2: Well your mum sucks and she's ridiculouness

by Pimpalicious Ice Dawg March 20, 2008
 
4.
is extremely ridiculous
That is Ridiculousness!
by Vv-HoWiRoLL-vV April 03, 2011