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Someone who is both ridiculous and acts like a donkey.
He acted like such a ridonkey!
by funone December 15, 2009
A person, situation, or thing that could be considered ridiculous, preposterous, or stupid. Something completely idiotic. Inane.
People waiting in line for black Friday sales are ridonkey. Don't they realize they can get similar or better deals online?

Creationism is still taught in some schools. Isn't that ridonkey?
by Charles Chaplin November 22, 2012