Preggosaurus 

A "robust" or "chunky" pregnant beast. This beast is usually of human descent and possibly has fowl odors emanating from it's pours and holes.

Also acceptable is Preg-O-Saurus Rex.

The preggosaurus frightened all the children with it's mammoth belly and fowl smell.

Preggosaurus by lepermessiah December 17, 2013

Preggosaurus Rex 

A pregnant woman who believes the world revolves around her and the spawn baking in her uterus. These women most likely had large and elaborate weddings with several rules and regulations for the groom, wedding attendants, and the guests (also see Bridezilla or beebee). Attention must be on her at all times. Caution, tantrums will ensue and Armageddon will occur if she does not get what she wants. Women can become one with no warning at any time from conception to birth.

Barbara: You know, Alexis is really becoming a Preggosaurus Rex.

Cindy: Really? Why?

Barbara: Because, that biatch put the Orbit travel system, baby Bellini custom made furniture, and Abercrombi and Fitch Kids on her baby registry. AND she also is throwing her own shower because her sister is fed up and expects us to pay $56 per person at the St. Regis Hotel for the party!

Cindy: Say wwwwuuuuuttt?! I was just going to get her a 3-pack of bibs from Target.

Preggosaurus Rex by Principal_Dannie January 13, 2010

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

Pregnasaurus 

A large lumbering animal with an extended stomach and a lifespan of about nine months. Animal is prone to ligament pain, especially as it reaches maturity. Know for uncontrollable mood swings, strange eating habits, and a cooing noise made when near children's clothing.

The pack of pregnasaurus waddled into the baby section of the department store and began making strange cooing noises. Spectators were amazed by the gentle nature of the pregnasaurus until one became ferocious with hunger and proceeded to hunt and devour a candy bar.

Pregnasaurus by Pregnasaur July 30, 2009

pregasaurus 

1: A pregasaurus is a pregnant woman that that will destroy anything thats in the way of her and her food.

2: a pregnant lady that will eat anything, its a omnivore (eats plants and meat)

1; Quick everybody hide there's a pregasaurus coming and shes on a war path.

2; jason: hey man who's chocolate is this

brett: i wouldn't touch that it belongs to a pregasaurus

jason: oh shit that was close man that could have been my

last meal

brett: yeah man them pregasurus are vicious creatures

pregasaurus by pregasurus hunter October 12, 2011

preggasaurus 

Noun. Huge lumbering creature with massive breasts, ferocious appetite and very slow, ungainly walk.

Derived from Greek: preggo = "knocked up chick" + sauros = "lizard".

"Wow, I didn't see Nicki for ages since she got knocked up. She's a real 8 month preggasaurus now.

preggasaurus by Wizards Sleeve June 12, 2006

Pregosaurus Rex 

A pregnant woman who acts as if she is the first person to ever be pregnant. Quick to anger and quick to tears.

I'm going to work late rather than go home and face the wrath of Pregosaurus Rex.

Pregosaurus Rex by Coward in the corner August 10, 2010