Bumosaurus Rex 

the biggest bum on the planet.

Dylan: Hey man, get i get a cig from ya?
Luke: Dude go buy your own, your such a bumosaurus rex.

Bumosaurus Rex by Retrogress April 5, 2011

Plagiatosaurus Rex 

Another addition to the nvnv collection of natures finest retarded creatures. The Plagiatosaurus Rex is known for its copying skills. It feeds on copypasta and has its ever so famous sound, "RETARD". The sound is often uttered during english classes especially when the Plagiatosaurus Rex is bored. He is related to Antonosaurus Rex but the Antonosaurus Rex denies it.

Plagiatosaurus Rex

Plagiatosaurus Rex by Juggernautic November 7, 2011

grumpasaurus rex

One who is dour on a colossal scale.

Person 1: "What's wrong with Bill today?"
Person 2: " He lost his wallet this morning and all afternoon he was nothing but a Grumpasaurus Rex to everyone in accounting."

grumpasaurus rex by bmyoung November 25, 2013

fucktardasaurus rex

A person who is a complete and utter moron.

Wow, he is such a fucktardasaurus rex!

fucktardasaurus rex by klca April 26, 2014

Jitosaurus Rex 

An extension of the word "Jit" with the same meaning
Can also be used as just "Jitosaurus"

Bro stop being such a jitosaurus rex

Jitosaurus Rex by DaPhatBoi February 27, 2023

Creeposaurus/creepasaurus rex 

These are alternate spellings/pronunciations to the already defined term "Creepersaurus rex". They refer to a very creepy person who exhibits monstrously creepy behavior that they remind you of a creepy dinosaur. The spellings and pronunciations may vary by person due to sociocultural, economic, geographical, and several other factors.

Person 1: That Facebook stalker was totally a creeposaurus. I got the heebie-jeebies!
Person 2: Me too! But, I personally say/spell it creepasaurus rex, but I'm glad we agree on something.
Person 1: Trueee. It does come from Creepersaurus rex, anyway...

Person 2: Creepo, creepa, creeper.... All of the describe this weird ass person!

Person 1: Yes, a Creeposaurus/creepasaurus rex indeed!

Creeposaurus/creepasaurus rex by LingDanc803 April 22, 2021

Vaginasaurus Rex 

A pejorative term I developed in reference to some, heartless and destructive women. From "vagina" referring to the mamalian birth canal and "dinosauria" (conined by Dr. Richard Owen) meaning "fearfully great lizard" The term is meant to convey the epitome of "bitch" potential that some (emphasized) women display.

My friend's ex-girlfriend broke up with him the day after her car fell off the ramps and crushed his legs while he was changing the oil. Now she's dating his mom. What a Vaginasaurus Rex.

Vaginasaurus Rex by Dr. Chris March 3, 2005