1 definition by KING WZRD

When the booty on a female is too big to be true. So big and perfectly shaped, no one will ever believe you. That's when you know it's ok to use the term Donkasaurus Rex.
My god...she got a Donkasaurus Rex on her.

Look at dat big old Donkasaurus Rex.
by KING WZRD November 28, 2018
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