Top Definition
pronunciation: Hippo-cock-a-saurus.

A Hippocockasaurus is a term used to describe an obese to enormously fat girl who wildly and disgustingly tries to have sex with any guy.

It can also be used to describe a really fat girl who is ugly and would have sex with any guy.

A Hippocockasaraus tends to reside in nightclubs wearing very tight clothes and have beast like traits and manners.
Guy to friend: Did you get a look at that Hippocockasaurus

Describing girl: she was ugly and fat, like a Hippocockasaurus
by Happypest101 January 08, 2013

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