Top Definition
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.
by lepermessiah December 17, 2013

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.