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.