1)A creature that is appalling in physical appearance.

2) A person that has disgusting, monster like features.
That fat bitch over in the corner is a hideous monstrosity, I'de rather die than sleep with that ogre.

My friend is a hideous monstrosity, he looks like the offspring of a drunk hippo and a retarted platypus.
by Crazy Chris and G-Zus March 31, 2005
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