Well, back in the old days there was a tale that sailors would tell land lovers about “Dire Rhea Splotzkin”. Not all the sailors would be able to pronounce Rhea’s last name, especially the Irish settlers in Boston, so the name was shortened to just “Dire Rhea”.

You see, Rhea Splotzkin was a sailor’s wife who chased after him when he set out to sea. She had a unique perfume that she used that drove her husband crazy-go-nuts. She wore it that day to try and attract him back to land like a siren, but little did she know that the smell her husband loved was that of fish bait! Once she was out to sea far enough in a rowboat, she realized that the current had taken her too far out and her husband had slipped into the night’s fog over the ocean.

She tried to get back to land, and she was spotted by the man who ran the local lighthouse. What that man saw, was Rhea, in dire straights trying to row back to the beaches, but she wasn’t strong enough. Smelling her perfume, the fish of the sea pounced, and the lighthouse man watched in horror as the carp in the waters killed and ate Rhea.

The lighthouse man started telling the story of Dire Rhea, and all the carp from then on fished from those seas were called Dire Rhea. The commenter clearly is from this area of the world, but the story and name of the fish has been diluted to a poop joke.