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2.
The combination of the two words "clitoris", part of the female genitals and "dinosaur", ancient animals that roamed the land billions of years ago (before they went extinct.)

Refering to a dangerous carnivorous form of clitoris that will probably alarm you as you're doing your work; can not be differed from a normal clitoris until initial contact (which will be painful) so you should ask your girlfriend/female aquaintance whether she has a dinosaur clitoris before things get too messy.
Dang, last night I was with this girl and turns out she had a damned clitosaurus.. hurt like fuck.

by Clitosaurus January 07, 2007
 
1.
noun:

One who's clit is Enormous or Dino-like.
She is a Clitosaurus
by zmarinelli January 20, 2011
 
3.
1. The cavernous vagina of barbelzebub that is sure do devour any penus forced to enter turning it into a mangina. 2. A vagina with teeth and breathes fire and has a grey pubic beard.
I wouldn't fuck barbelzebub with your dick, her clitosaurus was barking at me with chunks of meat in its teeth.
by girlie man hater September 21, 2004