prinosaur 

someone who looks like a princess but acts like a dinosaur

joe: that girl is pretty but she's so rude!
bill: yeah she's a total prinosaur!

prinosaur by im a mouse duh October 15, 2020

pregosaurus 

A female of small build, like a bird, but large belly due to infiltration of male seed. Often walks with a waddle late in her term. Easily agitated with the ability to acquire a wide spectrum of moods in a short period of time.

The only creature more dangerous than the T-REX was the pregosaurus.

pregosaurus by okcmatt April 17, 2011

peniosaur 

A prehistoric creature with a large neck large head and soft veiny skin.

"Dude they found a peniosaur bone in my girlfriend's vagina."

peniosaur by Jimmy Higgins February 7, 2008

pregnosaur 

A derogatory word for a pregnant woman.

Made famous by Al Bundy in Married With Children in Season 6 Episode 5.

Al Bundy "This is the thing that can happen if you let pregnosaurs rule the earth."

pregnosaur by Rasta Clat January 13, 2010

pornosaurus

Pornosaurus is a mythical dinosaur which appears on late night german TV and has sex with desperate women, also he has a lime-green ejaculate, which shock many, especially with the volume and colour of substance produced.

"How the hell did they work out he (Pornosaurus) has green cum!! UHHHHH!

pornosaurus by Sudo Nymm February 10, 2005

Prontosaurus Rex 

Fastest dinosaur ever. Also an additional way of conveying a sense of urgency, rather than simply saying pronto.

Dude get over here, prontosaurus rex.

Prontosaurus Rex by fighting salmon May 4, 2010

peninosaur 

A huge penis, may've killed (or belonged to) dinosaurs its so big.

"You may not wanna hook up with that guy, hes put 7 girls in the hospital because he unleashed his peninosaur on their ptwatodactyls."

peninosaur by Mattie Macabre December 4, 2007