Top Definition
A black dinosaur that Doesn't get a girl
The Keyon has been dead for thousands of years
via giphy
by Thatoneguy66666 May 18, 2017

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When you have a death wish but it doesn’t succeed
I had an uncharted life i got super depressed
by Ray-Man May 27, 2018

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A preposterous, ridiculous, silly dinosaur.
I ordered a T-Rex costume for my 4-year old son for Halloween. But when he put it on, I discovered it was actually a Prepostericilousillyasaurus. I asked for a refund.
by Tomothy Sears November 01, 2017

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