Top definition
The presentation of a single testicle flipped up over the under garment's elastic waistband or otherwise trouser material waistband; resembles the leathery egg shell of the early offspring of a dinosaur
I thought it would be funny to show my friends what a dinosaur egg was, so I tucked a ball over my pants and used my shirt as a curtain to unveil the travesty.
by diffferentia August 23, 2009
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2
The act of fisting a woman in the ass, then trying to open your hand up, while said hand is still inserted.
"Debbie could do nothing but scream when I successfully pulled off a Dinosaur Egg."
by PEM February 07, 2005
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