Top Definition
a prehistoric duck that still exist in present day year 1300. The Quackasaurasrex grants 3 wishes when you tickles his funny bone. He also has the power to transform into any living form so watch out your best friend just might be a Quackasaurasrex. but don't get on his bad side he will turn you into a talking cupcake.
Today I realized my own brother was a Quackasaurasrex I ticked his funny bone and wished for 3 million dollars I am now the current owner of orange juice.
by zombie_ninja143 February 12, 2012

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