oopu 

A group of furry enthusiasts who specialize in the writing of sexually explicit yaoi fanfics about Tay Zonday if he was an effeminate fox-man. Although fairly underground, the group gained some notoriety in 1998, when one of the members, on a trip to Asia, attempted to sodomize Shigeru Miyamoto, creator of the wildly popular Mario video game series. The member in question is now a Japanese B-list celebrity, and a hentai manga has been written about the event. The manga, entitled 'OOPU Wa Okama Desu~ Kawaii Neko Loli Sir Kudolot Force Go!', has sold over 123.05 million copies.

Bob: "I just joined OOPU, check out my fursuit!"
Ryan: "Kawaii desu ne?"

oopu by Xilba Adlberg April 4, 2008

OOPU 

A ripoff of FMIE; rejected members who formed together to become what FMIE is, and failed miserably. Sadly, others have taken their example, and created moronic groups that no one else would ever join or care about.

OOPU: the overrated, dumber version of FMIE.

Dude, we're OOPU, way better than FMIE. XDDD

OOPU by Orc King February 14, 2008

Magnum Oopus 

A person's biggest screwup.

Knocking down all the shelving in the parts department was my Magnum Oopus. What a mess.

Magnum Oopus by Hmd107 December 21, 2020

Oopus 

Like bill and teds bogus adventure, the average day in the life of Ryan and Sam

"dude did you hear about their Oopus day yesterday? Steve ended up in Stephanie's panties and they beat a goat at monopoly"

Oopus by Ding Chaveze August 17, 2011

Oopus 

It’s like oops
but instead it’s oopus
Also oopusite
The oopusite of yes is no

Oopus I didn’t know if an iguana was a fish or a meat

Oopus by Tarquin talks in third person December 27, 2020

oopung 

Dog name-ruler of the dog world

Oopung is on site

oopung by Crystal flame January 20, 2021

Oopus 

A way of saying "oops" but in a weirder fashion.
This is usually used in text, but can be used in person if one already knows the meaning of "oopus."

Person 1: "Hey what'cha wanna do tomorrow night."
Person 2: "You😏"
Person 2: "Oopus!"
Person 1: "uh.... nevermind, man."

Oopus by Ace Ventura: When Nature Calls January 26, 2022