Creepersaurus rex 

A person who is beyond creepy, like a creepy dinosaur (such as a T-rex). They are very strange, weird, bizarre, uncomfortable, and are usually very much unaware of it. A Creepersaurus rex will exhibit inappropriate behavior, such as stalking, demonstrating mental breakdowns on social media, or worse.

Teacher: This former student of ours posted pictures of my colleague on her Facebook cover photos without his knowing and she totally came off as a Creepersaurus rex. Stay clear of her.
Colleague: Omg... Yikes! The zoomed in photo sure didn't make it any less creepy, huh...

Creepersaurus rex by LingDanc803 April 21, 2021

Creepasaurus Rex 

1. (n.) The innate animal instinct that comes out while we mindlessly use social networking sites, such as Facebook and Twitter, for hours on end.

2. (adj.) Being a really big creeper

John missed his favorite T.V. show last night because he was being creepasaurus rex on Facebook.

"Chester totally tried sneaking a peek at you at the urinal, what a creepasaurus rex!"

Creepasaurus Rex by dyl-pod April 4, 2010

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