Top Definition
A fantasy type creature, similar to those found in Greek mythology. It is has the body of a hippopotamus, the horn of a unicorn, and the wings of a flying horse, such as Pegasus. Note that these wings are not to be confused with birds wings, as that would take away from the magic.
The Hippopotacornasusamus flew over the land, bringing hope and cheer to the people.
by Von Frankenstein August 31, 2008

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