by PSHASM February 8, 2010
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.
by KING WZRD November 28, 2018
1) Peter Fields called $40 with a five high straight. HAHA. What a donkasaurus rex.
2) Mike Kuzan only won eleven games of beer pong in a row. That kid is such a donkasaurus rex!
2) Mike Kuzan only won eleven games of beer pong in a row. That kid is such a donkasaurus rex!
by the champ 107 June 7, 2009