1 definition by tommyknocker590

Top Definition
A mythical creature that looks like a human, but has silver hair and red eyes. Like vampires, they drink blood, but they live underwater and lack fangs. They have also been known to rape merfolk and humans, then drink their blood.
Viola the panthalassian fucked me on the beach last night. It was awesome!
by tommyknocker590 July 02, 2012

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