1) An extremely poor poker player
2) An extremely poor beer pong player
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!
Female with a sweet ass, derived from tyranasaurous rex.
Beyonce is a donkasaurus rex, Megan Fox's badonk makes her a donkasaurus rex.