poonafish
Discovered in the early 1800's by Ethipian muff-divers off the coast of the Vaginal Islands, south of Cape Clitoris. The poonafish is a rather foul smelling fish related to the bearded clam. It can only be found in tropical waters and may be infectious.
Arnelda, realizing he was quite famished, walked down to the corner store to fetch himself a poonafish sandwich. He was later diagnosed with ghonnasyphilherpelaids.